Sub-Zero 700-2 Series Service Manual Download Page 56

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Page 56

Sealed System Information

Integrated (

700-

2) Series

4-3

3756780

- Revision D - July, 2005

SEALED SYSTEM REP

AIR PROCEDURES

Service Procedures

Capture refrigerant

Replace compressor

Replace filter-drier

Evacuate or sweep charge system

Recharge system with Virgin 134a refrigerant

Capture refrigerant

Repair leak

Replace filter-drier

Evacuate or sweep charge system

Recharge system with Virgin 134a refrigerant

Capture refrigerant

Repair leak (if at solder joint) or replace part

Back flush high side of sealed system

If all refrigerant has escaped and system is in a vacuum, replace compressor

Replace filter-drier

Evacuate or sweep charge system

Recharge system with Virgin 134a refrigerant

Capture refrigerant

Repair leak (if at solder joint) or replace part

Back flush high side of sealed system

Replace compressor

Replace filter-drier

Replace heat exchanger if cap tube is clogged

Install a low side drier on suction line

Evacuate or sweep charge sealed system

Recharge with Virgin 134a refrigerant

Capture refrigerant

Locate and remove restriction or locate and replace part

Back flush high side of sealed system

Replace filter-drier

Evacuate or sweep charge system

Recharge system with Virgin 134a refrigerant.

Capture refrigerant

Replace filter-drier

Evacuate or sweep charge system

Recharge system with Virgin 134a refrigerant

Problem

Non-Operating,
Inefficient, Noisy
Compressor

(

NOTE

To check for a

non-operating compres-
sor, a hard start kit can be
used)

High Side leak

Low Side Leak

Contaminated System

Examples:
> Compressor Burn out
> Excessive moisture

from leak in conden-
sate loop or in low side

> Plugged capillary tube

Restriction

(

NOTE

If restriction is

due to sealed system
being contaminated, see
Contaminated Sealed
System above.)

Overcharge

Summary of Contents for 700-2 Series

Page 1: ...ormation 7 Controls Operation 10 Sealed System 54 Air Flow Fan Blade Spacing 62 Icemaker Information 64 Component Access Removal 68 Troubleshooting Guide 107 Technical Data 141 Wiring Diagrams 147 subzero com 800 222 7820 700 Service Manual ...

Page 2: ...y IMPORTANT SAFETY INFORMATION Below are Product Safety Labels used in this manual The Signal Words used are WARNING or CAUTION When reviewing this manual please note these differ ent Product Safety Labels placed at the beginning of certain sections of this manual You must follow the instructions given in the boxes of the Product Safety Labels in order to avoid personal injury and or product damag...

Page 3: ...Control System Components Fan Light Switches Fan Motors Blades Defrost Drain Heaters Defrost Terminators Drain Pans Drain Tubes Wiring Light sockets bulbs Icemakers Water Valves Door hinges Door closers Cams Compressor Electricals etc Sealed System Parts include the following Compressors Condensers Evaporators Filter Driers Heat exchangers All Tubing That Carries the Freon NOTE Condenser Fan Motor...

Page 4: ...kers we will addressed in the succeeding sections Model 700TC 2 Figure 1 2 700 Series Tall Combo Combination Refrigerator Freezer with Two Temperature Zones Upper Refrigerator over Two Drawer Freezer 2nd Design Build Unit is 80 H x 27 W x 24 D Model 700TCI 2 Figure 1 2 700 Series Tall Combo Combination Refrigerator Freezer with Two Temperature Zones Upper Refrigerator over Two Drawer Freezer Ice m...

Page 5: ... is replaced by the 700TF 2V as of serial 1898164 see following page 700 Series Tall Freezer All Freezer with One Temperature Zone Upper Freezer Section over Two Drawer Freezer Section 2nd Design Build Unit is 80 H x 27 W x 24 D Model 700TFI 2 Figure 1 4 NOTE This model is replaced by the 700TFI 2V as of serial 1898164 see following page 700 Series Tall Freezer All Freezer with One Temperature Zon...

Page 6: ...r Two Drawer Freezer Section 2nd Design Build Variable Speed Compressor Unit is 80 H x 27 W x 24 D Model 700TFI 2V Figure 1 5 NOTE This model replaced the 700TFI 2 as of serial 1898164 700 Series Tall Freezer All Freezer with One Temperature Zone Upper Freezer Section over Two Drawer Freezer Section Ice maker Included 2nd Design Build Variable Speed Compressor Unit is 80 H x 27 W x 24 D Figure 1 5...

Page 7: ...80 H x 27 W x 24 D Figure 1 6 Model 700BR 2 Upper Refrigerator Zone Model 700BF 2 Figure 1 7 700 Series Base Freezer All Freezer with One Temperature Zone for Both Drawers 2nd Build Design Unit is 34 H x 27 W x 24 D Model 700BFI 2 Figure 1 7 700 Series Base Freezer All Freezer with One Temperature Zone for Both Drawers Ice maker Included 2nd Build Design Unit is 34 H x 27 W x 24 D Lower Refrigerat...

Page 8: ...terior condensa tion etc NOTE If additional installation information is needed refer to the complete Installation Manual and or installation video or contact the Sub Zero Technical Assistance Department Unit Leveling NOTE The kickplate grille must be removed before leveling See Figure 2 1 If the unit has already been anchored to the cabinets the side molding strips must be removed and the anchor s...

Page 9: ... so will damage the assembly Door and Drawer Adjustment The doors and drawers on 700 2 Series units are non adjustable Instead the door and or drawer panels must be adjusted if there is an alignment problem Refer to the Installation Manual and or installation video for panel installation and adjustment NOTE The unit must be level before attempting to adjust the door and drawer panels NOTE If the d...

Page 10: ...lized If a Tall unit is installed next to a Base unit and they are 2 or less apart part BBDUAL should be uti lized Complete installation instructions are supplied with the BBDUAL and TTDUAL packages If two or more units are placed side by side and are 2 or less apart a dual unit heater package must be applied to the left side of the right hand unit Failure to install the dual unit heater package c...

Page 11: ...INFORMATION NOTE The Electronic Control System used in an Integrated 700 2 Tall Unit differs from the Electronic Control System used in a Integrated 700 2 Base Unit For this reason Section 3 is divided into two parts The first part pertains to the Control System in Tall Units The sec ond part pertains to the Control System in Base Units ...

Page 12: ...mple Temperature displays alarm bell indicator SERVICE indicator and ICE system indicator Display Units The temperatures displayed may be in fahrenheit units of measure F or in celsius units of measure C A series of key strokes allows this to be changed back and forth Set Point The desired compartment temperature established by pressing the COLDER or WARMER keys High Offset Cut in As the compartme...

Page 13: ...ol system Model 700TCI 2 used See Figure 3 1 The entire electronic control system is described in greater detail on the following pages UNIT ICE WARMER COLDER REFRIGERATOR ON OFF ON OFF ON OFF WARMER COLDER FREEZER LCD COND FAN FREEZER COMP REFRIG COMP REFRIG EVAP FAN FREEZER EVAP FAN DEFROST TERMINATOR ICEMAKER WATER SOLENOID SOL MONITOR LINE CONTROL PANEL MEMBRANE SWITCH MICROPROCESSOR R E F E V...

Page 14: ...ERS ICE MAKER SENSES WATER VALVE ACTIVATION SENSES WHEN DEF HEATER SHUTS OFF POWERS FILL TUBE HEATER AND ACCESSORIES POWERS DEFROST CIRCUIT WHITE BLUE GRAY WHITE TAN BLUE PINK BLUE BLACK BLUE BLACK BLUE YELLOW ORANGE YEL BLUE WHITE BLUE WHITE BLUE RED ORANGE RED WHITE RED LOW VOLTAGE THERMISTOR CIRCUITS REF EVAP FRZ COMPARTMENT FRZ COMPARTMENT REF COMPARTMENT REF COMPARTMENT REF EVAP FRZ EVAP NOT ...

Page 15: ... unit control panel Switching the unit ON and OFF adjusting the set point temperature adjustments switching the ice maker system ON and OFF and enabling and disabling the door ajar alarm feature will be explained Please note that the 700TC I 2 control panel is used for most illustrations of the control panel and in most cases Fahrenheit readings are shown Unit ON OFF All Integrated 700 2 Series un...

Page 16: ...ing and releasing the ICE ON OFF key on the control panel power is allowed to the icemaker system and ICE is displayed on the LCD See Figure 3 7 To deactivate the icemaker system press and release the ICE ON OFF key again and the ICE annunciator will disappear from the LCD indicating the icemaker system is off NOTE When the unit is in Sabbath Mode the icemaker system is de energized Sabbath Mode w...

Page 17: ...ressed in the Troubleshooting Guide Supply Power to the Lighting System 115 Volts are supplied to the lighting system through the control board when the unit is switched on by pressing the UNIT ON OFF key See Figure 3 9 NOTE Disabling the lighting system Sabbath Mode is covered in Unique Electronic Control Input Operations Figure 3 9 700TC I 2 Signal Trace Schematic of Lighting System J6 J5 J3 E2 ...

Page 18: ...emperature displayed on the LCD will change by one degree per minute Figure 3 10 Average Compartment Temperature Displayed UNIT UNIT ICE ICE WARMER WARMER COLDER COLDER REFRIGERATOR REFRIGERATOR ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF WARMER WARMER COLDER COLDER FREEZER FREEZER J6 J5 J3 E2 E7 E10 E6 J2 J1 J7 J4 J5 J7 J3 J2 E2 E6 E10 E7 J1 J4 LOW VOLTAGE J6 HIGH VOLTAGE FREEZER OVERLOAD PROTECTOR...

Page 19: ... will run a great majority of the time This is normal These components will only cycle off during defrost and may also cycle off for short periods of time if the ambient temperature is low enough J6 J5 J3 E2 E7 E10 E6 J2 J1 J7 J4 J5 J7 J3 J2 E2 E6 E10 E7 J1 J4 LOW VOLTAGE J6 HIGH VOLTAGE CONDENSER FAN MOTOR NEUT 115 VOLTS 60 CYCLES L1 FREEZER FAN SWITCHES FREEZER FAN MOTOR WHITE BLACK PURPLE WHITE...

Page 20: ...enser fan along with the compressor and evaporator fan will only cycle off during defrost and may also cycle off for short periods of time if the ambient temperature is low enough Figure 3 13 700TC I 2 Signal Trace Schematic High Voltage of Condenser Fan Operation J6 J5 J3 E2 E7 E10 E6 J2 J1 J7 J4 HIGH VOLTAGE CONDENSER FAN MOTOR FREEZER OVERLOAD PROTECTOR NEUT 115 VOLTS 60 CYCLES L1 REFRIGERATOR ...

Page 21: ...ressor run time is monitored by microprocessor Monitor Compressor Run Duration Displays If Service may be Needed 700TC I 2 700TR 2 and 700TF I 2 The microprocessor in the models 700TC I 2 700TR 2 and 700TF I 2 senses the 115 volt output supplied to the compressor s monitoring the length of compressor run time See Figure 3 15 If several excessive compressor run periods occur a signal is sent to the...

Page 22: ...s the next defrost interval If the heater stays on longer than specified the electronic control decreases the next defrost interval This is an ongoing process whereby the defrost time and the defrost interval will vary by unit use NOTE A five minute time delay dwell follows all defrosts except in the model 700TF I 2V where the delay dwell is ten minutes The drain trough heater is energized during ...

Page 23: ...ressor run time is monitored by microprocessor Monitor Compressor Run Duration Displays If Service may be Needed 700TC I 2 700TR 2 and 700TF I 2 The microprocessor in the models 700TC I 2 700TR 2 and 700TF I 2 senses the 115 volt output supplied to the compressor s monitoring the length of compressor run time See Figure 3 15 If several excessive compressor run periods occur a signal is sent to the...

Page 24: ...eed com mand is observed continuously and for extended peri ods SERVICE flashes on LCD 2 115 volts AC supplied to compressor controller 1 High offset temp reached calling for cooling Monitor Speed Signal of Variable Speed Compressor Controller Displays If Service may be Needed 700TF I 2V The microprocessor in the model 700TF I 2V monitors speed commands it sends to the compressor controller See Fi...

Page 25: ...ignal to solenoid lasts more than 15 seconds power to icemaker system is disabled Fill tube heater is energized whenever icemaker system is switched ON and ICE appears on LCD Monitor Icemaker System and Display If Service Is Needed The microprocessor monitors the 115 volts supplied to the icemaker water valve solenoid If the solenoid is ener gized for more than fifteen seconds power to the icemake...

Page 26: ...e door ajar alarm bell key and the UNIT ON OFF key simultaneously See Figure 3 21 NOTE Temperature Units Selection Mode will end ten seconds after the last key stroke NOTE Do not press and hold the UNIT ON OFF key first this will simply switch the unit OFF UNIT UNIT ICE ICE WARMER WARMER COLDER COLDER REFRIGERATOR REFRIGERATOR ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF WARMER WARMER COLDER COLDER F...

Page 27: ... system remains active To initiate Showroom Mode the unit must first be switched OFF using the UNIT ON OFF key See Figure 3 24 With the unit switched OFF press and hold either pair of WARMER and COLDER keys then press the UNIT ON OFF key then release all three keys See Figure 3 25 To return unit to normal operating condition repeat the steps of switching the unit OFF first Then press and hold the ...

Page 28: ...T ICE ICE WARMER WARMER COLDER COLDER REFRIGERATOR REFRIGERATOR ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF WARMER WARMER COLDER COLDER FREEZER FREEZER Figure 3 27 After Unit is Switched OFF Press and Hold the WARMER Key for the Compartment Being Disabled Then Press the UNIT ON OFF Key Figure 3 26 To Enter or Exit Manual Compartment Disable Mode Switch Unit OFF First Indicating that all cooling func...

Page 29: ...F ON OFF ON OFF WARMER WARMER COLDER COLDER FREEZER FREEZER SERVICE SERVICE UNIT UNIT ICE ICE WARMER WARMER COLDER COLDER REFRIGERATOR REFRIGERATOR ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF WARMER WARMER COLDER COLDER FREEZER FREEZER SERVICE SERVICE Figure 3 32 Model 700TC I 2 SERVICE Alone Flashing Excessive Compressor Run OR Refrig Evap Thermistor or its Wiring Fault NOTE To help identify the pr...

Page 30: ...dentify the problem Diagnostic Mode Covered later in this section should be initiated NOTE To clear this error indicator the problem must be corrected then the unit switched OFF and back ON UNIT UNIT WARMER WARMER COLDER COLDER DOOR DOOR ON OFF ON OFF ON OFF ON OFF WARMER WARMER COLDER COLDER DRAWERS DRAWERS SERVICE SERVICE Figure 3 34 Model 700TR 2 EE Displayed at Left and SERVICE Flashing Lower ...

Page 31: ...t be corrected UNIT UNIT ICE ICE ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF WARMER WARMER COLDER COLDER FREEZER FREEZER SERVICE SERVICE Figure 3 40 Model 700TF I 2 700TF I 2V 700TF I 2 SERVICE Alone Flashing Excessive Compressor Run 700TF I 2V SERVICE Alone Flashing Excessive High Speed Commands to Variable Speed Compressor NOTE To clear this error indicator the problem must be corrected then the u...

Page 32: ...key while in Diagnostic Mode will toggle to the next thermistor location See Figure 3 43 3 44 3 45 below and thermistor loca tion code tables on next page NOTE After serial 1759493 700TC I 2 1759163 700TR 2 and 1757258 700TF I 2 700TF I 2V it is also possible to toggle through the thermistor locations using the WARMER keys NOTE After serial 1759493 700TC I 2 1759163 700TR 2 and 1757258 700TF I 2 7...

Page 33: ... display area during Diagnostic Mode this indicates the speed commands being sent from the microprocessor to the compressor controller This will only appear in the model 700TF I 2V See Figure 3 48 NOTE Speed commands display as 00 0 RPM 16 1600 RPM 17 1700 RPM 18 1800 RPM 21 2100 RPM 22 2200 RPM 24 2400 RPM and 27 2700 RPM 36 3600 RPM and 40 4000 RPM After serial 1759493 700TC I 2 1759163 700TR 2 ...

Page 34: ... board not receiving status data in response to speed commands If error codes are observed during Diagnostic Mode a non flashing SERVICE annunciator will appear on the LCD when Diagnostic Mode ends indicating error codes are still registered See Figure 3 50 To clear a non flashing SERVICE annunciator and the error codes the problem must be corrected and the unit must be ON Then the Bell ON OFF key...

Page 35: ...nd hold the desired compartment COLDER key and the UNIT ON OFF key for ten seconds See Figure 3 52 The evaporator tempera ture for that compartment will be displayed in the left display area of the LCD and the right display area will show the thermistor location NOTE If the COLDER and UNIT ON OFF keys are pressed and held for less then 10 seconds Diagnostic Mode will be initiated This was covered ...

Page 36: ...TC I 2 1759163 700TR 2 and 1757258 700TF I 2 700TF I 2V Initiate Temperature Log Recall Mode To View Compartment Temperature History Only Begin with the unit ON Now press and hold the desired compartment WARMER key then press the UNIT ON OFF key then release both keys See Figure 3 53 The left display area on the LCD will show average compartment thermistor tempera ture and in the right display are...

Page 37: ...N and in Diagnostic Mode See Figure 3 57 While in Diagnostic Mode toggle through the readings until the desired thermistor temperature is displayed on the LCD See Figure 3 58 Now press the WARMER key for that compartment and the UNIT ON OFF key simultaneously See Figure 3 59 The left display area on the LCD will show average thermistor temperature and in the right display area will be the index nu...

Page 38: ...ged No event indicator will appear with these temperatures NOTE If the unit was in Showroom Mode during any of the 168 indexes average temperatures will continue to be logged No event indicator will appear with these temperatures NOTE If the unit was switched OFF by pressing the UNIT ON OFF key during any of the 168 indexes and there was still 115V AC supplied to the control board the average temp...

Page 39: ...Hrs 99 198 Hrs 100 200 Hrs 101 202 Hrs 102 204 Hrs 103 206 Hrs 104 208 Hrs 105 210 Hrs 106 202 Hrs 107 214 Hrs 108 216 Hrs 9 Days 109 218 Hrs 110 220 Hrs 111 222 Hrs 112 224 Hrs 113 226 Hrs 114 228 Hrs 115 230 Hrs 116 232 Hrs 117 234 Hrs 118 236 Hrs 119 238 hrs 120 240 Hrs 10 Days 121 242 Hrs 122 244 Hrs 123 246 Hrs 124 248 Hrs 125 250 Hrs 126 252 Hrs Index Hours Past 127 254 Hrs 128 256 Hrs 129 2...

Page 40: ...ms with the unit are displayed in the control panel on the LCD This page illus trates a basic 700 2 base unit electronic control system See Figure 3 67 The entire electronic control system is described in greater detail on the following pages FREEZER ON OFF ICE ON OFF UNIT COLDER WARMER ON OFF LCD COMPRESSOR EVAP FAN DEFROST TERMINATOR BF I 2 Only COND FAN ICEMAKER BF I 2 Only WATER SOLENOID BF I ...

Page 41: ...nected at which points on the control board Below is a layout diagram of the control board and a copy of a summary table See Figures 3 68 3 69 NOTE All components on the control board are non replaceable If a problem with the control board is identified the complete control board must be replaced LT BLUE W YELLOW BLUE W BLACK BLUE W BLACK AUXILIARY CHART EMPTY BLUE W RED TERM No P3 1 2 3 4 5 6 COL...

Page 42: ...e 3 70 3 71 NOTE The LCD on the Integrated 700 2 Series base units is not back lit by unit lighting It will appear darker than the LCD on Integrated 700 2 Series tall units Figure 3 70 700BR 2 Control Panel Layout UNIT ON OFF KEY DRAWER AJAR ALARM ON OFF KEY UPPER DRAWER SET POINT ADJUSTMENT KEYS LOWER DRAWER SET POINT ADJUSTMENT KEYS LCD Liquid Crystal Display Figure 3 71 700BF I 2 Control Panel ...

Page 43: ...e unit is switched off using the the UNIT ON OFF key a trace of the word OFF will be visible on the LCD as long as there is power to the unit Adjusting Set Point Temperature Adjustments To adjust the set points press the appropriate compartment WARMER or COLDER key on the control panel in multi ple key strokes until the desired set point is achieved One key stroke equals a one degree Fahrenheit or...

Page 44: ...o not monitored by the control board Figure 3 75 700BFI 2 Icemaker System ON OFF Press ICE ON OFF Key ICE ICE FREEZER ON OFF ICE ON OFF UNIT COLDER WARMER ON OFF Drawer Ajar Alarm ON OFF All Integrated 700 2 Series base units are equipped with a drawer ajar alarm feature When activated the alarm will alert a customer if a drawer is stuck open or accidentally left open To enable the drawer ajar ala...

Page 45: ...iators All possible malfunctions are addressed in the Troubleshooting Guide Supply Power to the Lighting System 115 Volts are supplied to the lighting system through the control board when the unit is switched on by pressing the UNIT ON OFF key and a drawer is opened See Figure 3 76 NOTE Disabling the lighting system Sabbath Mode is covered in UNIQUE ELECTRONIC CONTROL SYSTEM INPUT OPERATIONS Figu...

Page 46: ...to the compressor and condenser fan in a 700BR 2 is controlled by the ther mistor located inside the upper reed switch When the upper drawer compart ment temperature reaches high offset the control board energizes the evaporator fan compressor and condenser fan See Figure 3 77 When the low offset temper ature is achieved in the upper drawer the control board de energizes the evaporator fan compres...

Page 47: ...ent set points for the individual drawers The temperature signal from the thermis tor in the upper reed switch is monitored by the microprocessor and displayed on the LCD Though the compartment air temperature does fluctuate the LCD dis plays the average temperature See Figure 3 80 When the compartment temperature reaches high offset the microprocessor supplies power to the evaporator fan compress...

Page 48: ...r to fully defrost before the compressor and condenser fan are energized See Figure 3 81 Figure 3 81 Signal Trace Schematic High Low Voltage of Model 700BR 2 Refrigerator Off Cycle Defrost L1 RED WHITE BLACK LOW VOLTAGE BLUE W BLACK BLUE W BLACK BLUE W YELLOW BLUE W YELLOW BLUE W RED BLUE W RED THERMISTOR EVAPORATOR THERMISTOR LOWER DRAWER NEUTRAL RELAY M COMPRESSOR OVERLOAD EVAPORATOR FAN MOTOR P...

Page 49: ...on longer than specified the electronic control decreases the next defrost interval See Figure 3 82 This is an ongoing process whereby the defrost time and the defrost interval will vary by unit use NOTE A five minute time delay dwell fol lows all defrosts At the end of the five minute dwell the compressor is ener gized but the evaporator fan will not be energized until the evaporator temperature ...

Page 50: ...temperatures will now be displayed in Celsius units of measure To convert back to Fahrenheit units of measure repeat the steps above NOTE Temperature Units Selection Mode will end ten seconds after the last key stroke DRAWER UPPER COLDER WARMER ON OFF UNIT DRAWER LOWER ON OFF COLDER WARMER Figure 3 83 Converting Units of Measure within first minute after switching unit ON Press and Hold the Door A...

Page 51: ...heard the unit is in Showroom Mode To determine if a 700BR 2 unit is in Showroom Mode open both drawers to warm the compartments adjust set points to 34 F 1 C and listen for the compressor and condenser fan to energize Due to the three minute mini mum off time and depending on how cold the compartments are this may take several minutes to verify DRAWER UPPER COLDER WARMER ON OFF UNIT DRAWER LOWER ...

Page 52: ...at Right and SERVICE Flashing Upper Compartment Thermistor or its Wiring Fault Figure 3 89 For Model 700BR 2 EE Displayed at Left and SERVICE Flashing Lower Compartment Thermistor or its Wiring Fault Figure 3 91 For Model 700BR 2 SERVICE Blinking Evaporator Thermistor Fault or Break in Thermistor Wiring DRAWER UPPER COLDER WARMER ON OFF UNIT DRAWER LOWER ON OFF COLDER WARMER SERVICE SERVICE DRAWER...

Page 53: ... the unit ON press and hold either COLDER key then press the UNIT ON OFF key then release both keys The left temperature display area indicates the real time tempera ture of the first thermistor being read The left temperature display area shows a code which indicates the location of the thermistor and all annunciators illuminate on the LCD indicating the unit is in Diagnostic Mode See Figure 3 95...

Page 54: ...n the LCD of a 700BFI 2 will not blink and the ice making system will not be disabled if the water valve is energized for more than 15 seconds There is not a Manual Compartment Disable Mode in 700 2 base units because there is only one compressor There is not a Manual Component Activation Mode in 700 2 base units The 700 2 Base unit s electronic control system does not have Error Codes There is no...

Page 55: ...ubricants silicone lubricants cleaning compounds rust inhibitors leak detection dyes or any other type of additive General Rules for Working with 134a Refrigerant Use equipment dedicated to 134a sealed system service only Use only 134a refrigerant for back flushing and sweep charging Always replace the filter drier when servicing the sealed system The filter drier must be cut from the sealed syste...

Page 56: ...eplace part c Back flush high side of sealed system d Replace compressor e Replace filter drier f Replace heat exchanger if cap tube is clogged g Install a low side drier on suction line h Evacuate or sweep charge sealed system i Recharge with Virgin 134a refrigerant a Capture refrigerant b Locate and remove restriction or locate and replace part c Back flush high side of sealed system d Replace f...

Page 57: ...aising the pressure and temperature The compressor pushes this high pressure high heat gas to the condenser Condenser Figure 4 2 The high pressure high heat gas travels through the con denser where the heat is dissipated by cooler air being drawn over the condenser tubing by the condenser fan This changes the gas into a high pressure warm liquid that is then routed through the door gasket seat hea...

Page 58: ...re change which occurs when the refrigerant enters the larg er diameter evaporator tubing from the smaller diameter capillary tubing This vapor travels through the evaporator absorbing heat from the compartment gradually convert ing it to a cool gas This cool gas then enters the suction line Suction Line Heat Exchanger Figure 4 6 The cool gas travels through the suction line which is sol dered to ...

Page 59: ...RAMS Figure 4 7 Model 700TC I 2 Refrigerant Flow FREEZER COMPRESSOR REFRIGERATOR COMPRESSOR REFRIGERATOR EVAPORATOR FREEZER EVAPORATOR CONDENSER FRONT FREEZER BACK REFRIGERATOR FREEZER HEAT EXCHANGER FREEZER FILTER DRIER REFRIGERATOR HEAT EXCHANGER FRAME HEATER HOT GAS REFRIGERATOR FILTER DRIER REFRIGERATOR SEALED SYSTEM FREEZER SEALED SYSTEM ...

Page 60: ... EVAPORATOR LOWER CONDENSER FRONT REFRIGERATOR LOWER BACK REFRIGERATOR UPPER REFRIGRATOR HEAT EXCHANGER LOWER REFRIGERATOR HEAT EXCHANGER UPPER FRAME HEATER HOT GAS REFRIGERATOR FILTER DRIER LWR UPPER REFRIGERATOR SEALED SYSTEM LOWER REFRIGERATOR SEALED SYSTEM REFRIGERATOR FILTER DRIER UPR Figure 4 9 Model 700TF I 2 and 700TF I 2V Refrigerant Flow COMPRESSOR EVAPORATOR CONDENSER HEAT EXCHANGER FIL...

Page 61: ... Model 700BF I 2 Refrigerant Flow COMPRESSOR EVAPORATOR CONDENSER HEAT EXCHANGER FRAME HEATER HOT GAS FILTER DRIER FREEZER SEALED SYSTEM EVAPORATOR SUMP Figure 4 10 Model 700BR 2 Refrigerant Flow COMPRESSOR EVAPORATOR CONDENSER HEAT EXCHANGER FRAME HEATER HOT GAS FILTER DRIER REFRIGERATOR SEALED SYSTEM EVAPORATOR SUMP ...

Page 62: ... From Motor 3 4 1 16 1 91 cm 16 cm Blade Bracket Clamp Away From Motor UPPER FAN MOTOR LOWER FAN MOTOR Figure 5 2 700TR 2 Air Flow and Fan Blade Spacing Blade Bracket Clamp Away From Motor FAN MOTOR Prior to Serial 1757258 1 1 16 2 54 cm 16cm 1 1 16 2 54 cm 16cm Starting w Serial 1757258 Figure 5 3 700TF I 2 and 700TF I 2V Air Flow and Fan Blade Spacing ...

Page 63: ...00 2 Series 2 Series 5 2 3756780 Revision D July 2005 7 8 1 16 2 22 cm 16 cm Blade Bracket Clamp Away From Motor 7 8 1 16 2 22 cm 16 cm Blade Bracket Clamp Away From Motor UPPER FAN MOTOR LOWER FAN MOTOR Figure 5 1 700TC I 2 Air Flow and Fan Blade Spacing ...

Page 64: ...es 2 Series 5 4 3756780 Revision D July 2005 11 16 1 16 1 75 cm 16 cm Blade Bracket Clamp Towards Motor Figure 5 4 700BR 2 Air Flow and Fan Blade Spacing 11 16 1 16 1 75 cm 16 cm Blade Bracket Clamp Towards Motor Figure 5 5 700BF I 2 Air Flow and Fan Blade Spacing ...

Page 65: ...ar Icemaker Operation When the icemaker thermostat has sensed temperatures of 17 F the thermostat closes At this time the current now has a path through the thermostat to the motor The motor is linked with the drive gear From the module there are copper contacts that ride on copper strips on the backside of the drive gear See Figure 6 1 As the drive gear rotates these contacts from the module will...

Page 66: ...ntrol system disables the icemaker system for 45 minutes after each ice harvest this does not apply to the 700BFI 2 To bypass the 45 minute dwell press the ICE key to switch the ice making system OFF then press the ICE key again to cycle the ice making system back ON NOTE 3 The ice bucket activates a switch when in place If the ice bucket is not in proper position ice production will stop NOTE 4 T...

Page 67: ...ock The mold heater should heat up If not see test 5 below 4 Remove the jumper test wire when the ejector blades reach the 8 00 o clock position The water valve should energize for 7 5 seconds when the ejector blades rotate to approximately 11 00 o clock If not repeat test 2 through 4 and check for 115V AC to solenoid when ejector blades rotate to approximately 11 00 o clock If no voltage check el...

Page 68: ...6 5 Mold Heater Assembly Removal To remove the mold heater assembly first remove the cover and the shut off arm Insert a Phillips head screwdriver into the access holes and extract the screws Then pull the mold heater assembly from the support See Figure 6 5 Ejector Blades and or Ice Stripper Removal To remove the ejector blades and or ice stripper first remove the cover and the shut off arm and d...

Page 69: ...rocedure it may be necessary to reference another component removal procedure listed earlier in this section NOTE Before continuing please take note of the WARNINGS and CAUTIONS below IF IT IS NECESSARY TO REMOVE A UNIT FROM ITS INSTALLATION REMEMBER THAT THE UNIT COULD TIP FORWARD WHEN PULLED FORWARD BEYOND THE ANTI TIP COMPONENTS RESULTING IN SERIOUS INJURY OR DEATH PULLING A UNIT FROM ITS INSTA...

Page 70: ...ther straight blade screwdriver under the face frame edge and gently work the molding away from the face frame and out of the four unit to cabinet brackets See Figure 7 2 Upper Door Compartment Light Switch Fan Switch Removal All Tall Units The upper door compartment light switch and fan switch protrude through the top trim molding just above the door Tabs on the switches hold the switches in the ...

Page 71: ...emoval All Tall Units The door assembly is held in place with Allen head screws that pass down through the arm of the top hinge assembly and up through the arm of the bottom hinge assembly into the door These mounting screws are concealed by a hinge cover on each hinge arm The hinge covers are held in place by tabs that fit into notches in the hinge arms NOTE Removing the top drawer first will mak...

Page 72: ...ee Figure 7 8 The door shelves and the dairy compartment are hung on the door by lining up the L shaped grooves with the knobs Push in and down to install a door shelf Pull up and out to remove a door shelf Compartment Shelf Adjustment Removal All Tall Units Compartment shelf side rails have hooks at the back that allow the shelves to be hung from the shelf lad ders To remove a compartment shelf t...

Page 73: ...emove and clockwise to install See Figure 7 10 Control Board Removal All Tall Units The control board is held in position by two sets of tabs behind the left side of the control panel The two for ward tabs position the LCD in the control panel window while the other two tabs secure the middle of the control board The control board is then shielded by a control enclosure and concealed by the light ...

Page 74: ...bottom of the upper evaporator cover sets into a channel at the bottom of the upper compartment At the top screws hold the evaporator cover to the evapo rator fan shroud To access and remove the evaporator cover the light diffuser must first be removed Then extract the screws at the top of the evaporator cover tilt the cover forward and lift out See Figure 7 14 Upper Evaporator Fan Shroud Assembly...

Page 75: ...s attached to the back wall with a screw To access and remove the upper compartment thermis tor first remove the light diffuser and evaporator cover Then disconnect the thermistor wire leads from the wire harness and extract the screw which secures the thermistor to the rear wall See Figure 7 17 Upper Evaporator Thermistor Removal 700TC I 2 700TR 2 NOTE There is no evaporator or evaporator thermis...

Page 76: ...00TCI 2 700TFI 2 700TFI 2V The icemaker is attached to a support plate with three screws that pass up through the plate into the bottom of the icemaker The ice level arm is also attached to the support plate using two P clamps and two screws The P clamps fit around rods at the back of the ice level arm Screws passing through the P clamps secure them to the support plate at the rear At the front a ...

Page 77: ...hat were hidden by the heat exchanger cover Extract the three screws at the top and the three screws on the right side Pull the right top front of the evaporator cover assembly down slightly and disconnect the evap orator fan electrical leads Now pull the assembly through the upper drawer opening Lower Evaporator Fan Assembly Removal 700TR 2 Only NOTE The evaporator fan assembly is attached to the...

Page 78: ...move the two drawers the heat exchanger cover and the lower evaporator cover assembly Then dis connect the thermistor electrical leads and extract the screw securing the thermistor to the right evaporator bracket See Figure 7 25 Lower Evaporator Cover Assembly Removal 700TC I 2 700TF I 2 700TF I 2V The lower evaporator cover in the 700TC I 2 700TF I 2 and 700TF I 2V is held in place with four scre...

Page 79: ...d to the front flanges of the evaporator fan bracket assembly with two screws To access and remove the lower evaporator fan shroud first remove the two drawers the heat exchanger cover and the evaporator cover Then extract the two screws that pass through the fan shroud into the evaporator fan bracket See Figure 7 28 Lower Evaporator Fan Assembly Removal 700TC I 2 The lower evaporator fan assembly...

Page 80: ...ver the heater To access and remove the defrost heater first remove the two drawers the heat exchanger cover the evapo rator cover and the evaporator fan shroud Then dis connect the heater electrical leads Grab the return bend of the heater clips with a needle nose pliers and pull that end of the clip away from the evaporator Unhook the other end of the heater clip from the evapo rator tubing Cut ...

Page 81: ...ve the lower compartment thermis tor first remove the two drawers the heat exchanger cover the lower evaporator cover and the switch enclo sure Then extract the screw from inside the switch enclosure and pull the thermistor out through the grom met See Figure 7 34 Fill Tube Heater Removal 700TC I 2 700TF I 2 700TF I 2V The fill tube heater is attached to the fill tube with a cable tie The heater e...

Page 82: ...the valve assembly secures the valve to the valve bracket NOTE It is not necessary to remove the compressor tray to access the water valve assembly To access and remove the icemaker water valve first turn off the water supply to the icemaker Then remove the kickplate grille With a wrench disconnect the brass compression fitting which holds the water supply line to the water inlet stub Push the fib...

Page 83: ...ge of the tray and pull forward See Figure 7 39 NOTE It may be necessary to disconnect the com pressor electrical leads in order to pull the tray out far enough to access the condenser fan assembly Begin removing the condenser fan assembly by discon necting the condenser fan motor electrical leads Extract the two screws at the top of the fan shroud and lift the shroud with motor up off of the pegs...

Page 84: ...and pull forward See Figure 7 42 NOTE It may be necessary to disconnect the com pressor electrical leads in order to pull the tray out far enough to access the condenser fan assembly Begin removing the condenser fan assembly by discon necting the condenser fan motor electrical leads Extract the two screws at the top of the fan shroud and lift the shroud with motor up off of the pegs at the bot tom...

Page 85: ...ews that secure the tray to the unit located at the front right and left corners Grab the front flange of the tray and pull forward See Figure 7 45 NOTE It may be necessary to disconnect the com pressor electrical leads in order to pull the tray out far enough to access the compressor controller Begin removing the compressor controller by discon necting the electrical leads Extract the two nuts an...

Page 86: ... and inspecting the joint for leaks it is recommended to apply an acrylic based paint to the joints to protect the exposed metals from oxidation Lower Compartment Evaporator Removal All Tall Units The lower evaporator in the tall units is concealed by the evaporator cover and is attached to the back wall with screws NOTE Before attempting to remove the evaporator evacuate the refrigerant from the ...

Page 87: ...t With the edge of a file score a line around the capillary tube approximately one inch from the filter drier outlet then fatigue the capillary tube at this line until it separates With a tube cutter cut the inlet tube approximately one inch from the filter drier See Figure 7 50 NOTE Sweating the joints apart is not recommended as this may induce moisture into the sealed system and could cause a s...

Page 88: ... tray to the unit located at the front right and left corners Grab the front flange of the tray and pull forward See Figure 7 49 After the tray is slid out use a flat blade screwdriver to remove the compressor electrical cover then discon nect the the electrical leads from the compressor See Figure 7 52 Begin removing the compressor by cutting the inlet and outlet tubing with a tube cutter approxi...

Page 89: ... in order to pull the tray out far enough to remove the condenser Begin removing the condenser by cutting the inlet and outlet tubes to and from the condenser approximately one inch from the weld joints Then prop the front of the unit tray up and drill out the four rivets securing the condenser to the tray See Figure 7 55 NOTE Sweating the joints apart is not recommended as this may induce moistur...

Page 90: ...ly two inches from the compressor See Figure 7 57 Since the filter drier will be replaced at the same time cut the drier inlet tube approximately one inch from the drier leaving the capil lary tube attached See Figure 7 58 The heat exchanger will be scrapped so use a tin snips or similar tool to cut the heat exchanger near the hole in the mul lion and the hole in the floor of the lower compartment...

Page 91: ... drier will be replaced at the same time cut the drier inlet tube approximately one inch from the drier leaving the capil lary tube attached See Figure 7 61 The heat exchanger will be scrapped so use a tin snips or similar tool to cut the heat exchanger near the hole in the floor of the lower compartment Pull the pieces of the heat exchanger out and clear the Hot Melt away from the hole NOTE To av...

Page 92: ... in place See Figure 7 63 The top drawer assembly has a control cable that must be disconnected during drawer removal To remove the top drawer pull the drawer open six inches to ten inch es then lift the front of the drawer up and off of the pins at the end of the drawer slides then push the slides back in See Figure 7 63 Carefully place the drawer assembly face down directly in front of the unit ...

Page 93: ...ard until the face frame edge of the molding is acces sible Place another straight blade screwdriver under the face frame edge and gently work the molding away from the face frame and out of the two unit to cabinet brackets See Figure 7 65 Drawer Gasket Removal All Base Units The drawer gaskets are pressed into retaining channels that are molded into the drawer liners NOTE Drawer assemblies must b...

Page 94: ...e the control cable the upper drawer assem bly must be extracted and the control panel must be removed first Then extract the screw and P clamp from the top of the drawer assembly Remove the wire channel from the bottom of the drawer tub which is held in place with double stick tape and pull the cable down through the channel in the drawer liner See Figure 7 68 Lighting Removal All Base Units The ...

Page 95: ... closer assemblies are located on the right side wall towards the back of the compartment Two screws secure each drawer closer to the wall To access and remove a drawer closer assembly first remove the appropriate drawer Then extract the two screws that secure the drawer closer to the wall and pull the drawer closer assembly from the wall See Figure 7 71 Drawer Slide Assembly Removal All Base Unit...

Page 96: ...ps and two screws The P clamps fit around rods at the back of the ice level arm Screws passing through the P clamps secure them to the support plate at the rear At the front a connecting rod is used to attach the ice level arm to the icemaker shut off arm Two screws at the top of the icemaker assembly and one screw at the bottom pass through the back air duct into screw grom met stand offs to hold...

Page 97: ...isconnect the thermistor electrical leads Cut the cable ties which hold the ther mistor to the evaporator and lift the thermistor out of the sump area See Figure 7 77 NOTE You may see a Y harness between the thermis tor electrical connections with wires exiting through the heat exchanger hole in the sump This is for factory test purposes and it can be removed or bypassed Defrost Terminator Removal...

Page 98: ...tor could cause short ened defrost times which will lead to incomplete defrost Control Board Assembly Removal All Base Units The control board assembly sets in the right side of the sump area A flange on the right side of the control board assembly fits into a groove in the sump to help locate it There are also raised areas at the front and back of the sump that hold the control board assembly in ...

Page 99: ...the control wire harness to the duct See Figure 7 81 Lean the top of the air duct forward On a model 700BR 2 reach behind the duct and disconnect the electrical leads from the baffle control See Figure 7 82 On a model 700BF I 2 reach behind the duct and disconnect the electrical leads from the icemaker switch Pull the air duct assembly out through the top drawer opening Baffle Control Removal 700B...

Page 100: ...om of the evaporator fan assembly sits on a flange at the bottom of the fan shroud See Figure 7 85 To access and remove the evaporator fan assembly first remove the drawers drawer closers drawer slides Reed switches sump cover and back duct On a 700TR 2 the mullion divider assembly and mullion divider supports will also need to be removed and on a 700BFI 2 the icemaker assembly will need to be rem...

Page 101: ...n remove the kickplate grille With a wrench disconnect the brass compression fitting which holds the water supply line to the water inlet stub With a Phillips screwdriver loosen the screw that secures the valve assembly to the valve bracket Grab the water inlet stub and lift up so that the head of the screw lines up with the large section of the key hole slot Pull the valve assembly forward until ...

Page 102: ... tray and pull forward See Figure 7 89 NOTE It may be necessary to disconnect the com pressor electrical leads in order to pull the tray out far enough to access the condenser fan assembly Begin removing the condenser fan assembly by discon necting the condenser fan motor electrical leads Extract the two screws at the top of the fan shroud and lift the shroud and motor up off of the pegs at the bo...

Page 103: ...and left corners Grab the front flange of the tray and pull forward See Figure 7 92 NOTE It may be necessary to disconnect the com pressor electrical leads in order to pull the tray out far enough to access the drain tube heater Unplug the drain tube heater electrical leads and pull the heater from the drain tube See Figure 7 93 NOTE When installing the replacement drain tube heater push the heate...

Page 104: ...denser outlet tube With the edge of a file score a line around the capillary tube approximately one inch from the filter drier outlet then fatigue the capillary tube at this line until it separates With a tube cutter cut the inlet tube approximately one inch from the filter drier See Figure 7 95 NOTE Sweating the joints apart is not recommended as this may induce moisture into the sealed system an...

Page 105: ...rews that secure the tray to the unit located at the front right and left corners Grab the front flange of the tray and pull forward See Figure 7 97 After the tray is slid out use a flat blade screwdriver to remove the compressor electrical cover then discon nect the the electrical leads from the compressor See Figure 7 98 Begin removing the compressor by cutting the inlet and outlet tubing with a...

Page 106: ...in order to pull the tray out far enough to remove the condenser Begin removing the condenser by cutting the inlet and outlet tubes to and from the condenser approximately one inch from the weld joints Then prop the front of the unit tray up and drill out the four rivets securing the condenser to the tray See Figure 7 101 NOTE Sweating the joints apart is not recommended as this may induce moistur...

Page 107: ...evaporator thermistor electrical connections with wires exiting through the heat exchanger hole in the sump This is for factory test purposes and it can be removed or bypassed To remove the rest of the heat exchanger the kickplate will need to be removed and the unit tray will need to be slid out To slide the unit tray out extract the two screws that secure the tray to the unit located at the fron...

Page 108: ...olumn of the troubleshooting guide lists the error codes The information in the right column explains what tests to perform and or what action to take to correct the error NOTE If error codes are observed in diagnostic mode a non flashing SERVICE annunciator will appear on the LCD when Diagnostic Mode ends indicating error codes are still registered Error Codes must be cleared from the electronic ...

Page 109: ... was displayed and SERVICE flashing check the following 1 Thermistor electrical connections and continuity from thermistor to J1 on control board Reconnect repair 2 Resistance of thermistor for 30 000 to 33 000 ohms at 32 F Replace if defective B If EE for freezer compartment was NOT displayed problem is intermittent thermistor error or caused by over heat ing above 116 F check the following 1 Doo...

Page 110: ...Grey White wire and continuity from defrost heater to J4 4 on control board Reconnect repair Grey White wire A With cold evap 10 F initiate Manual Defrost If compressor starts 5 minutes 10 minutes in 700TF I 2V after defrost is initiated check Grey White wire connections and continuity from defrost heater to J4 4 on control board Reconnect repair Grey White wire B Check for proper mounting and loc...

Page 111: ...nections or replace fan 3 If condenser airflow is good replace VS compressor controller A If unit is NOT experiencing cooling problems clear error code B If unit is experiencing cooling problems 1 Check serial communication wire leads for proper connection orientation at electronic control board and VS compressor controller 2 Check for damaged or disconnected serial communication wire leads betwee...

Page 112: ...e Log Recall Mode Begin with the unit ON Now press and hold the desired compartment WARMER key then press the UNIT ON OFF key then release both keys Toggle through the indexes by pressing the WARMER or COLDER key For Tall Unit Temperature Problems Starting with Serial 1759493 700TC I 2 1759163 700TR 2 and 1757258 700TF I 2 700TF I 2V 1 Begin troubleshooting by observing compartment set points 2 If...

Page 113: ...eezer Evaporator FE For Base Unit Temperature Problems Regardless of Serial Number 1 Begin troubleshooting by observing compartment set points 2 If set points are normal initiate Diagnostic Mode by pressing and holding either COLDER key then press UNIT ON OFF key then release both keys NOTE Diagnostic Mode will end twenty seconds after the last key stroke 3 Toggle to and observe appropriate evapor...

Page 114: ... Bucket 8 19 T Membrane Switch on Control Board Malfunctioning 8 19 U No Lighting 8 20 V Lights Stay on When Door and or Drawers Are Closed May be Accompanied by Door Drawer Ajar Alarm Bell 8 20 W Door or Drawers Not Able to Close Completely 8 20 X Door or Drawers Uneven 8 21 Base Units AA through TT AA Warm Freezer Temp in BF I 2 without SERVICE Flashing on the LCD 8 22 BB Warm Refrigerator Temp ...

Page 115: ...over missing not depress ing fan switch b Fan blade obstructed or out of position c Faulty fan switch NOTE A compressor must be running d Evaporator fan motor disconnected e Evaporator fan motor defective NOTE Compressor must be running Compartment Thermistor Misread a Move obstruction b See Door Hinge Operation Test Procedures later in this section Replace hinge if defec tive c Trip drawer closer...

Page 116: ...nefficient Compressor a See Door or Drawer Ajar on previous page b See Evaporator Fan Fault on previous page c See Compartment Thermistor Misread on previous page d Check electrical connections Reconnect repair bad connections Check resistance of heater 30 38 Ohms replace if defective e Check electrical connections Reconnect repair bad connections or replace terminator if defective f Manually init...

Page 117: ...or defective e Power from control board fault 700TC I 2 700TR 2 only f Power from compressor controller fault 700TF I 2V only Lights ON with Door Drawers Closed a Top hinge cover missing not depress ing light switch b Faulty light switch Check power to unit plug unit in or switch supply circuit breaker ON Check for OFF displayed at LCD If off press UNIT ON OFF key Press UNIT ON OFF key to OFF then...

Page 118: ...Check for 115V AC to fan switch depress fan switch and check for 115V AC from fan switch Replace switch if defective NOTE there are two fan switches in the drawer area d Check electrical connections of motor Reconnect repair bad connections e Check for 115V AC at fan motor with fan switch depressed Replace motor if defec tive Check resistance of freezer compartment thermistor for 30 000 to 33 000 ...

Page 119: ...missing fan switch b Fan blade obstructed or out of position c Faulty fan switch NOTE A compressor must be running d Evaporator fan motor disconnected e Evaporator fan motor defective NOTE A compressor must be running Evaporator Thermistor Disconnected or Shorted Compartment or Evaporator Thermistor Misread a Move obstruction b See Door Hinge Operation Test Procedures later in this section Replace...

Page 120: ...wer Ajar a Food product obstruction b Door cabinet hinge problem c Drawer closer tripped backwards Condenser Air Flow a Dirty condenser b Condenser fan blade obstructed or loose c Condenser fan motor disconnected d Condenser fan motor defective e Power from control board fault 700TC I 2 700TR 2 only f Power from compressor controller fault 700TF I 2V only a See Door or Drawer Ajar above b See Evap...

Page 121: ...m Fault Sealed System Leak Sealed System Restriction Inefficient Compressor a Replace hinge cover b Check operation of light switches lights off when switch is depressed Replace switch if defective NOTE there are two light switch es in the drawer area a Replace hinge cover b Move obstruction or reposition blade c Check for 115V AC to fan switch depress fan switch and check for 115V AC from fan swi...

Page 122: ...b Remove obstruction or tighten nut on motor shaft c Check continuity from motor to control board J7 1 on 700TC I 2 700TR 2 from motor to compressor on 700TF I 2 or from motor to compressor controller on 700TF I 2V Reconnect repair wiring or connections d Check for 115V AC to motor replace motor if defective e With compressor running check for 115V AC at control board J7 1 on 700TC I 2 700TR 2 Rep...

Page 123: ... COLDER keys and press UNIT ON OFF key Check set point If high adjust Check contents of freezer for warm food load Instruct customer Instruct customer unit performs best between 60 F 16 C and 90 F 32 C a Move obstruction b See Door Hinge Operation Test Procedures later in this section Replace hinge if defec tive c Trip drawer closer forward a Clean condenser b Remove obstruction or tighten nut on ...

Page 124: ...Celsius but customer thought it was Fahrenheit Switch unit OFF then ON then press hold Bell key and UNIT ON OFF key for 10 seconds 2 If Outside US Control set to display Fahrenheit but customer thought it was Celsius Switch unit OFF then ON then press hold Bell key and UNIT ON OFF key for 10 seconds Check icemaker area for jammed ice cube clear jam if present Check levelness of ice maker level if ...

Page 125: ... 1 2 3 below 1 If icemaker motor starts and finishes cycle a Check for 115V at valve during fill mode If no 115V inspect connections at icemaker and valve Repair or replace connection b Check for 115V from icemaker during fill mode If no power replace icemaker 2 If icemaker motor starts but does not finish cycle c Replace icemaker 3 If icemaker motor does NOT start d Check for 115V to icemaker If ...

Page 126: ...e operation opens when 115V AC applied closes completely when 115V AC removed valve solenoid ohms 160 Replace if defective See PROBLEMs A B E F G earlier in Troubleshooting Guide Check control panel ribbon cable All Pins on board should be in ribbon cable terminal housing See Membrane Switch Ribbon Cable Test Procedures for terminal housing Pin 1 identification See Membrane Switch Ribbon Cable Tes...

Page 127: ... closer forward Install hinge cover Check for 115V AC to and from light switch Replace switch if defective Check operation of light switch and fan switch lights OFF when light switch depressed fan ON when fan switch depressed If crossed reconnect wiring correctly Move obstruction See Door Hinge Operation Test Procedures later in this section Replace hinge if defec tive Trip drawer closer forward T...

Page 128: ...o High Warm Food Load High Room Ambient Drawer Ajar a Food product obstruction c Drawer closer tripped backwards Condenser Air Flow a Dirty condenser b Condenser fan blade obstructed or loose c Condenser fan motor disconnected d Condenser fan motor defective NOTE Compressor must be running Light ON with Drawers Closed b Faulty Reed Switch Check power to unit plug unit in or switch supply circuit b...

Page 129: ...rom front to back Reposition if out of posi tion c Check electrical connections from motor to P9 on control board Reconnect repair bad connections d Check for 115V AC at fan motor with Reed Switch depressed Replace motor if defec tive e Check for 24V AC from P2 on control board to Reed Switch depress switch and check for 24V AC from Reed Switch Replace Reed Switch if defective NOTE there are two R...

Page 130: ...net initial pulldown from ambient temperatures Continued No Power to Unit Unit Switched OFF Unit in Show Room Mode Control Set Too High Warm Food Load High Room Ambient Drawer Ajar a Food product obstruction c Drawer closer tripped backwards Condenser Air Flow a Dirty condenser b Condenser fan blade obstructed or loose c Condenser fan motor disconnected d Condenser fan motor defective NOTE Compres...

Page 131: ...of fan shroud and there is no play from front to back Reposition if out of posi tion c Check electrical connections from motor to P9 on control board Reconnect repair bad connections d Check for 115V AC at fan motor with Reed Switch depressed Replace motor if defec tive e Check for 24V AC from P2 on control board to Reed Switch depress switch and check for 24 V AC from Reed Switch Replace Reed Swi...

Page 132: ...heck refrigerator compartment thermistor electrical connections from thermistor to P1 on control board Reconnect repair con nections Check resistance of refrigerator compartment thermistor for 30 000 to 33 000 ohms at 32 F Replace if defective Check control cable and connections between control panel and Methode connec tor on back duct Reconnect repair or replace if defective Check wiring from Met...

Page 133: ...blem Check electrical connections and water con nections at water valve Reconnect repair connections Check resistance of water valve 160 ohms Replace if defective Pressing ICE key to OFF then to ON to bypass 45 minute dwell Then depress ice maker switch manually start icemaker with jumper between ports T H Watch cycle of icemaker and see 1 2 3 below 1 If icemaker motor starts and finishes cycle a ...

Page 134: ...g the drive gear counterclockwise with a flat blade screwdriver If icemaker motor starts with arm in the UP OFF position replace icemaker See PROBLEM GG earlier in Troubleshooting Guide Inspect icemaker thermostat apply more Thermal Mastic to thermostat Replace Icemaker Check water supply pressure must be con stant 20 100 PSI If not instruct customer Check level of icemaker adjust if needed Check ...

Page 135: ...y board Check all pins on Methode Connector at back air duct Reconnect repair connections See Membrane Switch Ribbon Cable Test Procedures If membrane switch passes all tests in Membrane Switch Ribbon Cable Test Procedures replace control board Check power to unit plug unit in or switch supply circuit breaker ON Check for OFF displayed at LCD If off press UNIT ON OFF key Press UNIT ON OFF key Inst...

Page 136: ... be adjusted if there is an alignment problem Refer to the Installation Manual and or installation video for panel installation and adjustment Check levelness of unit If un level turn front leveling legs counterclockwise to raise front or clockwise to lower it Rear levelers are adjusted from front of base by turning adjusting screw clockwise to raise rear or counterclockwise to lower it Refer to t...

Page 137: ...o check pressures always use solder on process valves Do NOT use bolt on process valves as they are prone to leak NOTE Whenever servicing the sealed system the high side filter drier must be replaced NORMAL OPERATING PRESSURES PRESSURE INDICATIONS If low side pressure is NORMAL LOW LOW HIGH HIGH high side pressure is NORMAL LOW HIGH LOW HIGH possible problem is MECHANICAL see General Troubleshooti...

Page 138: ... unit s temperature pres sure correlation may differ from those listed due to variations in evaporator thermistor location set points where the sealed system is in the refrigeration cycle etc If a unit is experiencing temperature problems it is recommended that you follow the Pointers in the first column of the General Troubleshooting Guide After all mechanical and electrical components have been ...

Page 139: ... mentioned the continuity tests described below are the same for all tall models If any of the tests show failure replace entire control panel assembly 1 Press no keys on the membrane switch Check for continuity between all pin combinations With no keys pressed there should be no continuity between any of the pins 2 Press UNIT ON OFF key there should be continuity between pins 1 2 3 Press Door Aja...

Page 140: ...y of the pins 2 Press UNIT ON OFF key there should be continuity across pins 3 4 3 Press Door Ajar Alarm ON OFF key there should be continuity across pins 2 4 4 Press Upper Drawer WARMER key there should be continuity across pins 4 5 5 Press Upper Drawer COLDER key there should be continuity across pins 1 3 6 Press Lower Drawer WARMER key there should be continuity across pins 1 2 7 Press Lower Dr...

Page 141: ...arallel with the gas ket off remove the top hinge cover and extract the one top door hinge screw closest to the pivot point of the hinge Loosen the three remaining top hinge screws almost all the way out Now open the door approximately 1 and let go to see if it closes on its own If door closes install the 700 Series Hinge Shims Package part 4202290 See Figure 9 4 If the door fails to close remove ...

Page 142: ...ATOR Cut In Temp Cut Out Temp DEFROST HEATER Watts Amps Resistance Ohms DRAIN TROUGH HEATER Watts Amps Resistance Ohms FILL TUBE HEATER Watts Amps Resistance Ohms WATER VALVE Watts Amps Resistance Ohms Inductive THERMISTORS Evap Compartment Resistance Ohms at 32 F 0 C 5 5 oz 5 psi to 30 psi 90 psi to 110 psi 4201880 Embraco EMI30HER 1 2 1 2 280 280 Off Cycle Defrost Evap 38 F before Compressor ON ...

Page 143: ...iginal Compressor Service Compressor BTU H DEFROST METHOD DEFROST TERMINATOR Cut In Temp Cut Out Temp DEFROST HEATER Watts Amps Resistance Ohms DRAIN TROUGH HEATER Watts Amps Resistance Ohms FILL TUBE HEATER Watts Amps Resistance Ohms WATER VALVE Watts Amps Resistance Ohms Inductive THERMISTORS Evap Compartment Resistance Ohms at 32 F 0 C 5 oz 5 psi to 30 psi 90 psi to 110 psi 4201880 Embraco EMI3...

Page 144: ...ervice Compressor BTU H DEFROST METHOD DEFROST TERMINATOR Cut In Temp Cut Out Temp DEFROST HEATER Watts Amps Resistance Ohms DRAIN TROUGH HEATER Watts Amps Resistance Ohms FILL TUBE HEATER Watts Amps Resistance Ohms WATER VALVE Watts Amps Resistance Ohms Inductive THERMISTORS Evap Compartment Resistance Ohms at 32 F 0 C 9 oz 7 vacuum to 7 psi 90 psi to 120 psi 4201870 Americold RG108 1 2 1 2 715 7...

Page 145: ... Max Speed Original Service Compressor BTU H at 4000 RPM Max Speed DEFROST METHOD DEFROST TERMINATOR Cut In Temp Cut Out Temp DEFROST HEATER Watts Amps Resistance Ohms DRAIN TROUGH HEATER Watts Amps Resistance Ohms FILL TUBE HEATER Watts Amps Resistance Ohms WATER VALVE Watts Amps Resistance Ohms Inductive THERMISTORS Evap Compartment Resistance Ohms at 32 F 0 C 9 5 oz 7 vacuum to 3 psi 90 psi to ...

Page 146: ...rvice Compressor Amps Original Service Compressor BTU H DEFROST METHOD DEFROST TERMINATOR Cut In Temp Cut Out Temp DEFROST HEATER Watts Amps Resistance Ohms DRAIN TUBE HEATER Watts Amps Resistance Ohms FILL TUBE HEATER Watts Amps Resistance Ohms WATER VALVE Watts Amps Resistance Ohms Inductive THERMISTORS Evap Compartment Resistance Ohms at 32 F 0 C 6 oz 10 psi to 20 psi 90 psi to 120 psi 4201880 ...

Page 147: ...ervice Compressor BTU H DEFROST METHOD DEFROST TERMINATOR Cut In Temp Cut Out Temp DEFROST HEATER Watts Amps Resistance Ohms DRAIN TUBE HEATER Watts Amps Resistance Ohms FILL TUBE HEATER Watts Amps Resistance Ohms WATER VALVE Watts Amps Resistance Ohms Inductive THERMISTORS Evap Compartment Resistance Ohms at 32 F 0 C 6 oz 3 vacuum to 2 psi 90 psi to 120 psi 4201860 Embraco FGS70 A 1 2 1 2 715 715...

Page 148: ...ING DIAGRAMS AND SCHEMATICS NOTE Due to our Continuous Improvement Program it is recommended to always use the wiring diagram schematic supplied with the unit located in an envelope in the compressor area This section is for refer encing prior to servicing or if the wiring dia gram schematic are missing from the unit ...

Page 149: ...OOR POWERS LIGHTS POWERS FRZ COMPRESSOR DRAWERS POWER INTO BOARD NEUTRAL INTO BOARD FUNCTION COLOR GRAY PURPLE BLACK YELLOW ORANGE WHITE ORANGE J6 J1 J4 J7 J2 J3 E6 E10 E7 E2 J5 SENSES FRZ EVAP TEMP DRAWERS FRZ EVAP IACC ICE F DR R DR EVAP FRZ EVAP FRZ EVAP REF EVAP REF REF REF FRZ FRZ WIRING DIAGRAM MODEL 700TC I 2 Prior to Serial 1755730 1 WHITE W BLUE STRIPE REFRIGERATOR LIGHTS ICEMAKER OPTIONA...

Page 150: ...ROTECTOR NEUT 115 VOLTS 60 CYCLES L1 REFRIGERATOR OVERLOAD PROTECTOR WIRING SCHEMATIC MODEL 700 TC I 2 Prior to Serial 1755730 FREEZER FAN SWITCHES WATER VALVE FREEZER COMPRESSOR STARTING RELAY FREEZER FAN MOTOR RUNNING CAPACITOR REFRIGERATOR COMPRESSOR REFRIGERATOR FAN SWITCH REFRIGERATOR FAN MOTOR ICEMAKER SWITCH PART NUMBER 3756640 REV D 2300 2900 OHMS 160 OHMS WHITE GRAY BLACK PURPLE TAN PINK ...

Page 151: ...TS POWERS FRZ COMPRESSOR DRAWERS POWER INTO BOARD NEUTRAL INTO BOARD FUNCTION COLOR GRAY PURPLE BLACK YELLOW ORANGE WHITE ORANGE J6 J1 J4 J7 J2 J3 E6 E10 E7 E2 J5 SENSES FRZ EVAP TEMP DRAWERS FRZ EVAP IACC ICE F DR R DR EVAP FRZ EVAP FRZ EVAP REF EVAP REF REF REF FRZ FRZ WIRING DIAGRAM MODEL 700TC I 2 Starting With Serial 1755730 1 WHITE W BLUE STRIPE REFRIGERATOR LIGHTS ICEMAKER OPTIONAL FILL TUB...

Page 152: ...ECTOR NEUT 115 VOLTS 60 CYCLES L1 REFRIGERATOR OVERLOAD PROTECTOR WIRING SCHEMATIC MODEL 700 TC I 2 Starting with Serial 1755730 FREEZER FAN SWITCHES WATER VALVE FREEZER COMPRESSOR STARTING RELAY FREEZER FAN MOTOR RUNNING CAPACITOR REFRIGERATOR COMPRESSOR REFRIGERATOR FAN SWITCH REFRIGERATOR FAN MOTOR ICEMAKER SWITCH PART NUMBER 3756640 REV E 2300 2900 OHMS 160 OHMS WHITE GRAY BLACK PURPLE TAN PIN...

Page 153: ...RZ EVAP FRZ EVAP REF EVAP REF REF REF FRZ FRZ PART NUMBER 3756660 REV C WHITE PURPLE TAN WHITE GREEN BLACK BLACK CONDENSER FAN MOTOR 1 6 4 2 L2 L1 GREEN PLAIN RIBBED POWER SUPPLY CORD 1 2 PURPLE WHITE BLACK 4 ORANGE GRAY WHITE W RED STRIPE RED PURPLE YELLOW ORANGE SWITCH BOX 4 PURPLE 6 YELLOW 2 WHITE 5 ORANGE 3 GREEN ORANGE ORANGE WHITE UPPER DRAWER LIGHT FAN MOTOR UPPER REF EVAP 2 WHITE 1 ORANGE ...

Page 154: ...AWER EVAP THERMISTOR STARTING RELAY NEUT WHITE BLACK PURPLE 115 VOLTS 60 CYCLES GRAY L1 OVERLOAD PROTECTOR UPPER DRAWER FAN SWITCH PURPLE OVERLOAD PROTECTOR RED DRAWER COMPRESSOR UPPER REF FAN SWITCH WHITE UPPER REF COMPRESSOR RED DISPLAY MEMBRANE SWITCH DRAWER EVAP FAN MOTOR RUNNING CAPACITOR UPPER REF EVAP FAN MOTOR PURPLE GRAY ORANGE ORANGE LOW VOLTAGE HIGH VOLTAGE BLUE W BLACK STRIPE BLUE W BL...

Page 155: ...FRZ EVAP FRZ EVAP REF EVAP REF REF REF FRZ FRZ PART NUMBER 3756660 REV D WHITE PURPLE TAN WHITE GREEN BLACK BLACK CONDENSER FAN MOTOR 1 6 4 2 L2 L1 GREEN PLAIN RIBBED POWER SUPPLY CORD 1 2 PURPLE WHITE BLACK ORANGE GRAY WHITE W RED STRIPE RED PURPLE YELLOW ORANGE SWITCH BOX 4 PURPLE 6 YELLOW 2 WHITE 5 ORANGE 3 GREEN ORANGE ORANGE WHITE UPPER DRAWER LIGHT FAN MOTOR UPPER REF EVAP 2 WHITE 1 ORANGE L...

Page 156: ...ER EVAP THERMISTOR STARTING RELAY NEUT WHITE BLACK PURPLE 115 VOLTS 60 CYCLES GRAY L1 OVERLOAD PROTECTOR UPPER DRAWER FAN SWITCH PURPLE OVERLOAD PROTECTOR RED DRAWER COMPRESSOR UPPER REF FAN SWITCH WHITE UPPER REF COMPRESSOR RED DISPLAY MEMBRANE SWITCH DRAWER EVAP FAN MOTOR RUNNING CAPACITOR UPPER REF EVAP FAN MOTOR PURPLE GRAY ORANGE ORANGE LOW VOLTAGE HIGH VOLTAGE BLUE W BLACK STRIPE BLUE W BLAC...

Page 157: ...ENSES FRZ EVAP TEMP SENSES IF DOOR OPEN SENSES IF EITHER DRAWER OPEN POWERS LIGHTS POWERS COMPRESSOR POWER INTO BOARD NEUTRAL INTO BOARD FUNCTION COLOR GRAY PURPLE BLACK YELLOW ORANGE WHITE ORANGE J6 J1 J4 J7 J2 J3 E6 E10 E7 E2 J5 NOT USED NOT USED NOT USED IACC ICE F DR R DR EVAP FRZ EVAP FRZ FRZ FRZ PART NUMBER 3756680 REV D 1 WHITE W BLUE UPPER LIGHTS ICEMAKER OPTIONAL FILL TUBE HEATER WHITE BL...

Page 158: ... LIGHT SWITCH LIGHT TERMINATOR CONDENSER FAN MOTOR DEFROST TERMINATOR DOOR LIGHTS DRAWER LIGHTS FILL TUBE HEATER DEFROST HEATER FREEZER OVERLOAD PROTECTOR NEUT 115 VOLTS 60 CYCLES L1 FREEZER FAN SWITCHES WATER VALVE FREEZER COMPRESSOR STARTING RELAY FREEZER FAN MOTOR RUNNING CAPACITOR ICEMAKER SWITCH PART NUMBER 3756680 REV D 2300 2900 OHMS 160 OHMS WHITE BLACK PURPLE TAN PINK GRAY WHITE BLUE ORAN...

Page 159: ...IF DOOR OPEN SENSES IF EITHER DRAWER OPEN POWERS LIGHTS POWERS COMPRESSOR POWER INTO BOARD NEUTRAL INTO BOARD FUNCTION COLOR GRAY PURPLE BLACK YELLOW ORANGE WHITE ORANGE J6 J1 J4 J7 J2 J3 E6 E10 E7 E2 J5 NOT USED NOT USED NOT USED IACC IC F DR R DR EVAP FRZ EVAP FRZ FRZ FRZ WIRING DIAGRAM MODEL 700 TF I 2 From Serial 1752891 to Serial 1898164 PART NUMBER 3756680 REV E 1 WHITE W BLUE UPPER LIGHTS I...

Page 160: ...SWITCH LIGHT TERMINATOR CONDENSER FAN MOTOR DEFROST TERMINATOR DOOR LIGHTS DRAWER LIGHTS FILL TUBE HEATER DEFROST HEATER FREEZER OVERLOAD PROTECTOR NEUT 115 VOLTS 60 CYCLES L1 FREEZER FAN SWITCHES WATER VALVE FREEZER COMPRESSOR STARTING RELAY FREEZER FAN MOTOR RUNNING CAPACITOR ICEMAKER SWITCH PART NUMBER 3756680 REV E 2300 2900 OHMS 160 OHMS WHITE BLACK PURPLE TAN PINK GRAY WHITE BLUE ORANGE ORAN...

Page 161: ... EVAP FRZ IN IN J1 3 THRU 6 YLW W RED YLW W BLACK SPEED DATA TO V SPEED CONTROL BOX SERIAL OUT SERIAL OUT OUT OUT SPEED DATA TO V SPEED CONTROL BOX STATUS DATA FROM V SPEED CONTROL BOX BLUE BLACK CABINET SENSOR SENSES FRZ CABINET TEMP FRZ J1 7 8 PART NUMBER 3757271 REV B 1 WHITE W BLUE UPPER LIGHTS ICEMAKER OPTIONAL FILL TUBE HEATER WHITE BLUE 1 2 BLACK BLACK 4 PINK 3 WHITE 1 GREEN 2 TAN WHITE W B...

Page 162: ...NATOR CONDENSER FAN MOTOR DEFROST TERMINATOR DOOR LIGHTS DRAWER LIGHTS FILL TUBE HEATER DEFROST HEATER NEUT 115 VOLTS 60 CYCLES L1 FREEZER FAN SWITCHES WATER VALVE FREEZER FAN MOTOR ICEMAKER SWITCH PART NUMBER 3757271 REV B 2300 2900 OHMS 160 OHMS WHITE BLACK PURPLE TAN PINK GRAY WHITE BLUE ORANGE ORANGE WHITE BLUE 30 38 OHMS WHITE PURPLE RED 155 175 OHMS ORANGE ORANGE MEMBRANE SWITCH DISPLAY FRZ ...

Page 163: ... 4 YEL RED 3 YEL BK 2 YEL WH 1 RED WHITE W RED WHITE WHITE W RED WHITE W RED LT BLUE W YELLOW LT BLUE W YELLOW RED 6 5 4 3 2 1 GREEN RED BLACK YELLOW WHITE BLUE ORANGE BLACK GREEN EVAPORATOR SENSOR BLACK L2 L1 THERMISTOR THERMISTOR DOOR SWITCH CABINET BAFFLES REMOTE DISPLAY ZONE THERMISTORS 1 2 ORANGE WHITE WHITE ORANGE GREEN GREEN WIRING DIAGRAM MODEL 700BR 2 MFG TEST TERMINALS 3 GREEN 2 WHITE 1 ...

Page 164: ...ELAY NEUTRAL LOWER DRAWER THERMISTOR EVAPORATOR THERMISTOR TOP DRAWER DOOR SWITCH DOOR SWITCH LOWER DRAWER WHITE W RED WHITE W RED BLUE W RED BLUE W RED BLUE W YELLOW BLUE W YELLOW BLUE W BLACK BLUE W BLACK YELLOW W WHITE YELLOW W RED YELLOW W BLACK LOW VOLTAGE BLACK WHITE RED PURPLE ORANGE L1 This wiring information is provided for use by qualified service personnel only Disconnect appliance from...

Page 165: ...G CAPACITOR WHITE BLACK PURPLE POWER SUPPLY CORD COMPRESSOR STARTING RELAY BLUE COMPRESSOR TAN WHITE WHITE WHITE TAN WHITE BLUE DEFROST TERMINATOR 17 ORANGE P6 16 YELLOW WH RED 2 WHITE 15 GREEN RED WHITE LT BLU YEL 3 2 1 ORANGE GREEN RED WHITE CONTROL BOARD DETAIL ORANGE 14 3 WHITE BLU RED 13 WH RED 4 WHITE W RED BLUE GRAY WHITE 12 11 BLU RED 10 WHITE WHITE W RED WHITE W RED LT BLUE W YELLOW LT BL...

Page 166: ...SSOR RELAY STARTING RUNNING TOP DRAWER LIGHT LOWER DRAWER LIGHT 25 29 OHMS 1700 2100 OHMS 2300 2900 OHMS TOP DRAWER THERMISTOR EVAPORATOR THERMISTOR DOOR SWITCH LOWER DRAWER DOOR SWITCH TOP DRAWER ORANGE NEUTRAL RED GRAY TAN WHITE PURPLE BLACK BLUE W BLACK BLUE W BLACK LT BLUE W YELLOW LT BLUE W YELLOW WHITE W RED WHITE W RED PART NUMBER 3756712 REV B This wiring information is provided for use by...

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Sub-Zero 700-2 Series, Service Manual

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