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True TBC-24-A, Service Manual

The True TBC-24-A Service Manual is an essential resource for owners of this high-quality product. This comprehensive manual is available for free download at manualshive.com, ensuring easy access to detailed instructions and troubleshooting tips. Enhance your experience with the True TBC-24-A by having the manual at your fingertips.

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27

15 & 24 INCH SERVICE MANUAL

17

08.10.17 SB

TRUE RESIDENTIAL

®

206582

CONTROL COMMANDS

 

+

 

Lock

º

F

ICE

º

C

 Lock / Unlock Keypad.

 

+

 

Sabbath Mode

º

F

ICE

º

C

Sets Sabbath mode – Star K certified. Kosher 
compliant.

 

+

 

Showroom Mode

º

F

ICE

º

C

Displays set point.
Lights are fully functional.
Deactivates refrigeration system.
Disables power off function.  

 

+

 

Hard Reset (hold 3 sec)

To initiate hard reset, unit must be in the “off” 
position. This feature is used to reset the control.

Refrigeration Error

º

F

ICE

º

C

Unit has not reached desired set point after 15 hours 
of run down. Service recommended. Power unit off 
and back on to reset.

Compartment Probe  

Failure Only

º

F

ICE

º

C

Compartment probe has failed. 

Evaporator Probe Failure 

Only

º

F

ICE

º

C

Evaporator probe has failed. 

Both Probe Failure

º

F

ICE

º

C

Compartment and evaporator probes have failed. 
Change both and reset power to the control board to 
clear the error message. Unit will run 3 min. on and 3 
min. off until probes are changed. 

High Temperature Alarm

Set high temperature alarm. 
High Temps (1 consecutive hour): 
50°F - Refrigerator 
70°F - Wine Cabinet

Door Ajar Alarm

Door is ajar (7 minutes)

KEY   

COMBINATIONS

LCD READOUTS

DESCRIPTION

“B” R

evision

 C

ontRol

 B

oARd

 94 

tWC-24/tBC-24/tUR-24/tUR-24d

º

F

ICE

º

C

º

F

ICE

º

C

º

F

ICE

º

C

USER INTERFACE COMMANDS ON TRUE PRECISION CONTROL

®

9

08.10.17 SB

TRUE RESIDENTIAL

®

206582

CONTROL COMMANDS

KEY   

COMBINATIONS

LCD READOUTS

DESCRIPTION

Software Version

73ºC

º

F

ICE

º

C

Code is displayed for 45 seconds when power is
supplied to the unit. 

Off / On

º

F

ICE

º

C

Power unit off / on.

Set Point

º

F

ICE

º

C

Press to display set point.

Decrease Set Point

º

F

ICE

º

C

Press to decrease set point. 
Minimum set points: 
33ºF - Refrigerators
40ºF - Wine units

Increase Set Point

º

F

ICE

º

C

Press to increase set point.
Maximum set points:
47ºF - Refrigerators 
65ºF - Wine units

Accent Light

º

F

ICE

º

C

Turn accent light on/off. When icon is displayed, light 
remains on at all times.

Color

Switch LED colors - Slowly press and release to
switch between 14 colors. 

Alarm

º

F

ICE

º

C

Set high temperature and door ajar alarm. 

Door ajar - 7 minutes. 

High Temps (1 consecutive hour):

50°F - Refrigerator

70°F - Wine Cabinet

 

+

 

Temperature Scale

º

F

ICE

º

C

Toggle between °C / °F.

“B” R

evision

 C

ontRol

 B

oARd

 73 

tWC-24/tBC-24/tUR-24/tUR-24d

Evaporator probe failure. change probe and interrupt power to 

reset. NOTE: 94 V ONLY 

Compartment Probe Failure 

Only

Evaporator Probe Failure Only

Compartment probe failure. change probe and interrupt power to 

reset. NOTE: 94 V ONLY 

High temp alarm
50 degrees F / 1 hour - refrigerator
70 degrees F / 1 hour - wine cabinet
32 degrees F / 1 hour - freezer
NOTE: 94V only

NOTE: 94V only

NOTE: 94V only

20

CONTROL COMMANDS

04.10.17 AC

TRUE RESIDENTIAL

®

206582

Compartment Probe 

Failure (Zone 2)

º

F

ICE

º

C

Compartment probe has failed in Zone 2.

Evaporator Probe Failure 

(Zone 2)

º

F

ICE

º

C

Evaporator probe has failed in Zone 2.

Both Probe Failure  

(Zone 2)

º

F

ICE

º

C

Compartment and evaporator probes have failed in 
Zone 2. Change both and reset power to the control 
board to clear the error message.

High Temperature Alarm

º

F

ICE

º

C

Set high temperature alarm. 
High Temps (1 consecutive hour): 
50°F - Refrigerator 
70°F - Wine Cabinet

Door Ajar Alarm

º

F

ICE

º

C

Door is ajar (7 minutes)

KEY   

COMBINATIONS

LCD READOUTS

DESCRIPTION

“B” R

evision

 C

ontRol

 B

oARd

 94 

tWC-24dZ

compartment probe in bottom zone has failed. Change probe and 
interrrupt power to reset. 
NOTE:94V ONLY. DUAL ZONE ONLY.  

Each time the unit calls for cooling, we will run the 

evaporator fan for 5 minutes before running the 

compressor.

NOTE: 94 V only

23

08.10.17 SB

TRUE RESIDENTIAL

®

206582

CONTROL COMMANDS

KEY   

COMBINATIONS

LCD READOUTS

DESCRIPTION

Software Version

94ºC

º

F

ICE

º

C

Code is displayed when power is supplied to the unit or a 
hard-reset is done.

Off / On (hold 3 sec)

º

F

ICE

º

C

Power unit off / on.

Set Point

º

F

ICE

º

C

Press to display set point.

Decrease Set Point

º

F

ICE

º

C

Press to decrease set point. 
Minimum set points: 
-4ºF

Increase Set Point

º

F

ICE

º

C

Press to increase set point.
Maximum set points:
4ºF

 

+ 

Initiate Manual Defrost

Defrost will terminate at the following temperature or time.

Termination temperature:

40ºF

Termination time:

30 minutes

Accent Light

º

F

ICE

º

C

Turn accent light on/off. When icon is displayed, light 
remains on at all times.

Color

Switch LED colors - Slowly press and release to
switch between 14 colors.

Alarm

º

F

ICE

º

C

Set high temperature and door ajar alarm. 

Door ajar - 7 minutes. 

High Temps (1 consecutive hour):
32ºF 

“B” R

evision

 C

ontRol

 B

oARd

 94 

tUF-24

17

08.10.17 SB

TRUE RESIDENTIAL

®

206582

CONTROL COMMANDS

 

+

 

Lock

º

F

ICE

º

C

 Lock / Unlock Keypad.

 

+

 

Sabbath Mode

º

F

ICE

º

C

Sets Sabbath mode – Star K certified. Kosher 
compliant.

 

+

 

Showroom Mode

º

F

ICE

º

C

Displays set point.
Lights are fully functional.
Deactivates refrigeration system.
Disables power off function.  

 

+

 

Hard Reset (hold 3 sec)

To initiate hard reset, unit must be in the “off” 
position. This feature is used to reset the control.

Refrigeration Error

º

F

ICE

º

C

Unit has not reached desired set point after 15 hours 
of run down. Service recommended. Power unit off 
and back on to reset.

Compartment Probe  

Failure Only

º

F

ICE

º

C

Compartment probe has failed. 

Evaporator Probe Failure 

Only

º

F

ICE

º

C

Evaporator probe has failed. 

Both Probe Failure

º

F

ICE

º

C

Compartment and evaporator probes have failed. 
Change both and reset power to the control board to 
clear the error message. Unit will run 3 min. on and 3 
min. off until probes are changed. 

High Temperature Alarm

Set high temperature alarm. 
High Temps (1 consecutive hour): 
50°F - Refrigerator 
70°F - Wine Cabinet

Door Ajar Alarm

Door is ajar (7 minutes)

KEY   

COMBINATIONS

LCD READOUTS

DESCRIPTION

“B” R

evision

 C

ontRol

 B

oARd

 94 

tWC-24/tBC-24/tUR-24/tUR-24d

º

F

ICE

º

C

º

F

ICE

º

C

º

F

ICE

º

C

Compartment Probe 

Failure 

(Upper zone on DZ)

Evaporator Probe 

Failure 

(Upper zone on DZ)

Compartment and 

Evaporator Probes 

Failed 

(Upper zone on DZ)

Compartment Probes 

Failure DZ Only

(Lower zone)

Evaporator Probe 

Failure DZ Only

(Lower zone)

Compartment and 

Evaporator Probes 

Failed DZ Only

(Lower zone)

Unit will run in safe mode as follows:

10 minutes off /  10 minutes evaporator fan only

10 minutes fan and compressor

Cycle repeats until both probes are changed

NOTE: 94 V only

Each time the unit calls for cooling, we will run the 

evaporator fan for 10 minutes before running the 

compressor.

NOTE: 94 V only

Cycle off evaporator probe using a 2˚ degree offset

NOTE: 94 V only

Cycle off evaporator probe using a 2˚ degree offset

Initiate Manual Defrost 

(freezer only)

Unit will run in safe mode as follows:

10 minutes off / 10 minutes evaporator fan only

10 minutes fan and compressor

Cycle repeats until both probes are changed

NOTE: 94 V only

Defrost will terminate at the following temperature or time.

Termination temperature: 40˚F

Termination time: 30 minutes

time.

NOTE: 94 V only

NOTE: 94 V only

NOTE: 94 V only

Set high temperature alarm.
High Temps (1 consecutive hour):
50˚F - Refrigerator / 70˚F - Wine Cabinet
NOTE: 94 V only

To initiate hard reset, unit must be in the "off" position. 

This feature is used to reset the control.

NOTE: 15 inch units use "light" button

Note: 94V only.

Summary of Contents for TBC-24-A

Page 1: ...TRUE RESIDENTIAL 1 5 I N C H A N D 2 4 I N C H U N D E R C O U N T E R S E R V I C E M A N U A L A A N D B R E V I S I O N S P R E S E R V E T H E M O M E N T ...

Page 2: ...T 19 LED LIGHTING 20 STACKING KIT 21 22 TYPES OF COMPRESSORS AND SPECIFICATIONS 46 VARIABLE SPEED COMPRESSOR DIAGNOSTICS 47 INVERTER BOARD DIAGNOSTICS TABLE 48 COMPRESSOR COMPARTMENT LAYOUT 49 SOFTWARE INFORMATION AND START UP MODE 24 SEQUENCE OF OPERATION 25 USER INTERFACE COMMANDS 26 27 DEFROST 28 EVAPORATOR COVER REMOVAL 29 30 EVAPORATOR SECTION LAYOUT 31 32 PROBES VALUES 32 EVAPORATOR FAN DRIV...

Page 3: ...TRUE RESIDENTIAL CONTACT INFORMATION ...

Page 4: ...B r a c k e t s I n s t a l l a t i n g Th e D o o r S t o p I n s t a l l i n g 9 0 D o o r H i n g e O p t i o n D r a w e r D e p t h A d j u s t m e n t s D r a w e r Fr o n t s A d j u s t m e n t s D r a w e r G l id e s A d j u s t m e n t s D o o r R e m o v a l St a i n l e s s St e e l St a i n l e s s G l a s s D o o r A d j u s t m e n t s O v e r l a y Pa n e l O v e r l a y Pa n e l ...

Page 5: ...unit Has the door stop been installed Has the customer been given the installation user guide NOTE A lock is standard on stainless steel units therefore the key to the lock is taped to the back of the user install guide Overlay paneled units will not come with a lock or key Have stainless steel surfaces been inspected for any imperfections This is to be done by the authorized True dealer or instal...

Page 6: ... the refrigerator and seriously injure themselves Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance Keep hands away from the pinch point areas gaps between the doors and between the doors and cabinet small areas are not necessarily safe Unplug the refrigerator before cleaning and making repairs NOTE WE STRONGLY RECOMMEND THAT ALL SERV...

Page 7: ...NTY DEPARTMENT ANSWERS QUESTIONS REGARDING WARRANTY STATUS PROCESSES WARRANTY CLAIMS WARRANTY PARTS ORDERS FROM SERVICE PROVIDERS Residential Phone Number 844 849 6179 Fax 636 980 8510 Email TrueResidentialWarranty truemfg com Stephanie Bouxsein Diane Javaux Submit Claims to TrueResidentialWarranty truemfg com Hours Monday Thursday 7 00AM 7 00PM CST Friday 7 00AM 6 00PM PARTS DEPARTMENT OFFERS NON...

Page 8: ...THANK YOU FOR YOUR PURCHASE ...

Page 9: ...he outlet is properly grounded If the outlet is a standard 2 prong outlet it is your personal responsibility and obligation to have it replaced with the properly grounded 3 prong wall outlet Do not use an extension cord or two prong adaptor Electrical ground is required on this appliance The unit should always be plugged into its own individual electrical circuit which has a voltage rating that ma...

Page 10: ...ar to those used as signals for alarms on doors and windows Refer to the specifications of your alarm system to determine the type of circuit used The color codes for the different circuits are as follows Normally closed contacts White with black and violet Normally open contacts White with blue and black Common White with black CAUTION ANY UNUSED TERMINALS SHOULD BE FULLY INSULATED AND ALL WIRES ...

Page 11: ...id by carefully lifting the refrigerator off and place skid aside D Open the unit and remove any packing material Styrofoam tape and any other material used for shipping purposes NOTE KEYS FOR THE LOCK ARE PROVIDED WITH THIS PACKET STAINLESS STEEL UNITS COME STANDARD WITH LOCKS OVERLAY PANEL READY UNITS WILL NOT BE EQUIPPED WITH LOCKS NOTE ANTI TIP BRACKETS KIT AND DOOR STOP ARE PACKED WITHIN THE ...

Page 12: ...or is not level adjust the stainless steel leg levelers The leg levelers can be adjusted by turning CCW to reach the desired leveling height as shown in the illustration below STEP 3 Free plug and cord from back of unit STEP 4 The unit should be placed close enough to the electrical supply so that extension cords are never used Plug unit directly into the wall outlet STEP 5 Once installed in final...

Page 13: ...HAZARD A CHILD OR ADULT CAN TIP THE REFRIGERATOR FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PROPERTY OR BODILY HARM BEFORE MOVING UNIT TAKE PRECAUTIONS TO PROTECT THE FLOOR Read all installation instructions first Install the anti tip brackets to hold both rear legs of the unit Follow these steps to secure the brackets to the floor before moving the unit into final operating position Conta...

Page 14: ...ip brackets STEP 2 To mount the anti tip bracket to wood floor drill pilot holes for each of the bracket holes To mount the anti tip bracket to concrete or ceramic floor use a masonry bit to drill pilot holes Align anti tip bracket holes with the holes in the floor Fasten anti tip bracket with screws provided using the brass colored screw for wood or blue colored masonry screw for concrete 2 3 ...

Page 15: ...ench Phillips screwdriver KIT INCLUDES 90º Hinge left or right Door stop bracket left or right 1 STEP 1 Remove toe kick ALL UNITS ARE PROVIDED WITH AN OPTIONAL DOOR STOP WHEN INSTALLED THE DOOR STOP WILL PREVENT DAMAGE TO SURROUNDING CABINETS BY RESTRICTING THE DOOR FROM OPENING PAST APPROXIMATELY 120º WITH A STANDARD HINGE OR 90º WITH AN 90º HINGE OPTIONAL INSTRUCTIONS FOR STAINLESS STEEL MODELS ...

Page 16: ... drop if not supported Remove 2 3 8 bolts to detach 120º door hinge standard 3 STEP 3 Slowly remove door from unit by sliding down from top hinge 4a STEP 4 Install door stop using screws already installed Reinstall door by sliding up into top hinge 4b OPTIONAL 90 HINGE INSTALLATION INSTRUCTIONS FOR STAINLESS STEEL MODELS ...

Page 17: ...nge with the 2 3 8 bolts that you removed Note Do not tighten screws all the way until door adjustments have been made STEP 6 Align door with lock latch and light switch Tighten screws OPTIONAL 90 HINGE INSTALLATION INSTRUCTIONS FOR STAINLESS STEEL MODELS ...

Page 18: ...eft and right screws that mount the drawer frame to the slide See Image 1 STEP 2 To bring the drawer out to the front of the unit pull the drawer out where the tab is seated towards the rear of the unit See Image 2 STEP 3 Hold drawer position and tighten screws 1 2 ...

Page 19: ...ovement on the drawer front STEP 4 Hold adjustment in place and re tighten the screws back down FIGURE 1 STEP 1 Remove screws one on each side on top of drawers at front STEP 2 Remove drawers lift out from the front STEP 3 Loosen the two screws on the glide STEP 4 Use bottom screw to adjust glide STEP 5 Tighten side screws STEP 6 Replace drawer by aligning into tabs in back STEP 7 Reinsert screws ...

Page 20: ... the bolts are removed STEP 3 Remove the two 3 8 inch bolts from the bottom hinge using a ratchet and socket See image 2A and 2B STEP 4 Pull the hinge out of the bottom of the door and set it aside STEP 5 Once these two bolts are removed slightly open the door still supporting the weight with your knee or a block slowly allow the door to drop down off the top hinge pin See image 3 STEP 6 Reinstall...

Page 21: ...he door up or down on the handle side See image 3 STEP 5 Hold the adjusted door and retighten the two 3 8 inch bolts until very snug to prevent the adjustment from coming loose STEP 6 Test the door by opening and closing making sure the door is not hitting the lock latch image 4a and ensure that the door makes contact with the door switch image 4b STEP 7 Re install the louver grill 3 2 4A 4B 1 ALL...

Page 22: ...orting the door open slightly and shift the door up or down on the handle side See image 4 STEP 5 Hold the adjusted door and retighten the two 3 8 inch bolts until very snug to prevent the adjustment from coming loose DOOR ADJUSTMENT LEFT TO RIGHT STEP 1 Loosen the top and bottom Phillips screws do not remove screws unless you want to remove the door See image 5 and 6 STEP 2 Shift the entire door ...

Page 23: ...THE SAME SIDE OF THE CABINET AS THE DOOR HINGE WHEN REINSTALLING THE WINE RACK BE SURE THAT THE BACK OF THE RACK HOOKS UNDERNEATH THE TAB ON THE GLIDE The tab on the front of the glide must also fit securely in the gap between the handle and the rack see illustration If the fit is too tight you may need to loosen the screws on the back of the handle to increase the gap The wine shelves are held se...

Page 24: ...or 10 times in a row This will reset all modules back to white The LED modules run off a 10V DC power supply which is located next to the microprocessor control The power supply has 115V AC incoming then 10V DC outgoing WHEN LIGHTS ARE SET TO GO OFF WHEN THE DOOR IS SHUT 30 SECONDS LATER THE LED S WILL HAVE A SPLIT SECOND FLASH THIS IS BY DESIGN TO ALLOW THE LED S TO RELEASE STORED ELECTRICITY IT ...

Page 25: ... damage when handling the units Install the anti tip bracket per instructions see separate Verify the anti tip brackets are properly located by trial fitting the lower unit in place If so pull the unit back out to prepare Step 1 PROTECT THE FLOOR SURROUNDING CABINETRY AND THE UNITS AT ALL TIMES THIS PROCEDURE REQUIRES ASSISTANCE FROM EXTRA PERSON S STEP 1 Carefully lift the top cabinet and place o...

Page 26: ... right by placing a small level on the interior floor See Image 2 STEP 4 Now tighten all 4 5 16 inch screws to secure the brackets to the units STEP 5 Carefully put the stacked units in their final setting Make sure the bottom unit s rear legs are securely locked into the anti tip brackets STEP 6 Install supplied louver grill on upper unit See Image 3 2 3 24 INCH ...

Page 27: ...r I n t e r f a c e C o m m a n d s D e f r o s t E v a p o r a t o r C o v e r R e m o v a l E v a p o r a t o r S e c t i o n L a y o u t P r o b e Va l u e s E v a p o r a t o r Fa n D r i v e r C o n t r o l B o a r d R e p l a c e m e n t M o d e l S e l e c t S e q u e n c e O f O p e r a t i o n W i r i n g D i a g r a m s TECHNICAL DATA ...

Page 28: ... hard reset will eliminate the need to disconnect power to the unit to verify software and program the model when needed HARD RESET PROCEDURE In order to perform a hard reset of the machine please follow these steps i Turn the unit Off using the power button hold for 3 seconds ii Press and hold the iii A successful hard rest will show a 3 digit code for 25 seconds followed by 94 for 20 seconds Aft...

Page 29: ...m of 25 seconds This is for manufacturing process only From the off to the on position using the interface power button the following will happen 1 Interior LED lights will illuminate 2 Display readout will show interior cabinet temp based off the compartment probe 3 After a 2 minute delay the refrigeration system will start The refrigeration system compressor condenser fan motor evaporator fan mo...

Page 30: ...tch LED colors Slowly press and release to switch between 14 colors Alarm º F ICE º C Set high temperature and door ajar alarm Door ajar 7 minutes High Temps 1 consecutive hour 50 F Refrigerator 70 F Wine Cabinet Temperature Scale º F ICE º C Toggle between C F Press and release the button combination to start the color cycle Press and release the button combination again to choose the desired col...

Page 31: ...ZONE ONLY Each time the unit calls for cooling we will run the evaporator fan for 5 minutes before running the compressor NOTE 94 V only 23 Off On hold 3 sec ICE Set Point º F ICE º C Press to display set point Decrease Set Point º F ICE º C Press to decrease set point Minimum set points 4ºF Increase Set Point º F ICE º C Press to increase set point Maximum set points 4ºF Initiate Manual Defrost D...

Page 32: ...2 CONTROL COMMANDS KEY COMBINATIONS LCD READOUTS DESCRIPTION Software Version 94ºC º F ICE º C Code is displayed when power is supplied to the unit or a hard reset is done Off On hold 3 sec º F ICE º C Power unit off on Set Point º F ICE º C Press to display set point Decrease Set Point º F ICE º C Press to decrease set point Minimum set points 4ºF Increase Set Point º F ICE º C Press to increase ...

Page 33: ...29 15 24 INCH SERVICE MANUAL EVAPORATOR COVER REMOVAL Remove all shelves from the unit Remove two Phillips screws on upper part of evaporator cover Slide cover down and out A VERSION ...

Page 34: ...down and pull out NOTE YOU MAY NEED TO LIFT UP ON THE LEFT AND RIGHT SHELF STANDARD WITH A SCREWDRIVER PLEASE SEE PICTURE 2 Loosening the shelf standard may be necessary if lifting wasn t successful Remove the top gray cap and loosen the screw do not remove the screw See Picture 3 EVAPORATOR COVER REMOVAL PICTURE 1 PICTURE 2 PICTURE 3 B VERSION ...

Page 35: ...31 15 24 INCH SERVICE MANUAL EVAPORATOR SECTION LAYOUT EVAPORATOR FAN MOTOR AND BLADE COMPARTMENT PROBE 2 BLUE STRIPES EVAPORATOR PROBE 1 BLUE STRIPE EVAPORATOR COIL A VERSION ...

Page 36: ...CTION LAYOUT EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR DRIVER BLUE PROBE DEFROST ASSIST PROBE BLACK PROBE CUT IN CUT OUT 12V DC 120V AC The evaporator fan motor driver is located directly next to the evaporator fan The motor driver will have 120V AC coming in and 12V DC going to the motor EVAPORATOR FAN DRIVER PROBE VALUES B VERSION ...

Page 37: ... are working on See table below 5 Wait for the display to time out until the compartment temperature is displayed Programming is now complete 6 After a 2 minute delay all components will start and run until the set point is reached NOTE If you miss step 3 in allowed time the model select sequence will not function and you will have to reset power to the unit All B version replacement boards have a...

Page 38: ...IBBED J33 J32 J30 J4 J3 J31 J16 J29 J17 J43 J36 J42 J41 J40 J39 J38 J37 J35 DRAWER SWITCH 2 YELLOW YELLOW RESIDENTIAL UNDERCOUNTER 24D WIRING DIAGRAM EVAP FAN MOTOR RIBBED SMOOTH LED YELLOW BLACK ORANGE RED MODE P N 958860 J2 J1 J7 J25 J28 J26 J27 J23 J24 J34 LEDDRIVER BLACK LED BLACK EXTRENALDISPLAY DISPLAY BOARD ICE C F BLACK LIGHT ENERGY RED ALARM BLACK WHITE RED GREEN SA VER LED BLACK BLACK LE...

Page 39: ...MBER 958860 TRUE UNDERCOUNTER DRAWERED UNIT LOWVOLTAGE HIGHVOLTAGE PROBE CAB PROBE EVAP BLUE STRIPE X 2 BLUE STRIPE X 1 DRAWER SWITCH 2 YELLOW YELLOW LED BLACK ORANGE MODE BLACK LED DRIVER DISPLAY BOARD ICE C F BLACK RED LED ALARM LIGHT COLOR BLACK WHITE GREEN RIBBED SMOOTH EVAP FAN BLACK ORANGE PURPLE SMOOTH RIBBED COND FAN LED DRIVER COMPRESSOR INVERTER CONTROL BOARD J33 J32 J30 J4 J3 J31 J16 J2...

Page 40: ...E X 1 J30 J32 J33 J16 J31 J3 J4 J17 J29 EVAP FAN MOTOR BLACK SMOOTH RIBBED GREEN J7 J1 J2 LED BLACK BLACK WHITE BLACK ORANGE RED MODE DOOR SWITCH COND FAN MOTOR GREEN SMOOTH PURPLE BLACK RIBBED YELLOW YELLOW J42 J36 J43 J38 J39 J40 J41 J26 J28 J35 J37 J24 J23 J27 J25 J34 LED RED BLACK RED COLOR LIGHT ALARM WIRING DIAGRAM PART NUMBER 957875 TRUE 24 UNDERCOUNTER MODELS A VERSION ...

Page 41: ... J32 J30 J4 J3 J31 J16 J29 J17 J43 J36 J42 J41 J40 J39 J38 J37 J35 DOOR SWITCH YELLOW WHITE EVAP FAN MOTOR RIBBED SMOOTH BLACK GREEN WHITE RED J2 J1 J7 J25 J28 J26 J27 J23 J24 J34 LEDDRIVER LED BLACK DISPLAY BOARD ICE C F LIGHT RED ARY BLACK WHITE RED GREEN FANDRIVER NSES EVAP TEMP NSES EVAP TEMP UND FOR DISPALY WER INTO BOARD TRAL INTO BOARD FUNCTION WHITE COLOR BLACK GREEN NSES CAB TEMP NSES CAB...

Page 42: ... GREEN RIBBED SMOOTH EVAP FAN BLACK ORANGE PURPLE LED DRIVER COMPRESSOR INVERTER CONTROL BOARD J33 J32 J30 J4 J3 J31 J16 J29 J17 J43 J36 J42 J41 J40 J39 J38 J37 J35 J2 J1 J7 J25 J28 J26 J27 J23 J24 J34 CONTROL J32 J30 J31 J16 J4 J3 J17 J33 J2 BOARD J29 J1 J7 J39 J43 J36 J42 J41 J40 J26 J38 J37 J35 J28 J27 J25 J24 J23 J34 RED BLACK RED BLACK GREEN GREEN COND FAN DRIVER ICE C F DISPLAY BOARD LIGHT A...

Page 43: ...E C F YELLOW GREEN BLACK WHITE BLACK GREEN BLACK BLACK WHITE BLACK ORANGE RED SMOOTH PURPLE RIBBED YELLOW YELLOW RED BLACK RED WHITE GREEN BLUE BROWN RED BLACK BLUE GRAY WHITE YELLOW WHITE YELLOW WHITE J30 J31 J16 J17 J42 J36 J43 J38 J39 J40 J41 J26 J28 J35 J37 J24 J23 J27 J25 J34 J3 J4 J32 J33 J29 J1 J2 J7 ...

Page 44: ...CE C F YELLOW GREEN BLACK WHITE BLACK GREEN BLACK BLACK WHITE BLACK ORANGE RED SMOOTH PURPLE RIBBED YELLOW WHITE YELLOW WHITE RED BLACK RED WHITE GREEN BLUE BROWN RED BLACK BLUE GRAY WHITE J30 J31 J16 J17 J42 J36 J43 J38 J39 J40 J41 J26 J28 J35 J37 J24 J23 J27 J25 J34 J3 J4 J32 J33 J29 J1 J2 J7 ...

Page 45: ...LLOW GREEN BLACK WHITE J30 J32 J33 J16 J31 J3 J4 J17 J29 BLACK GREEN J7 J1 J2 BLACK WHITE ORANGE RED J42 J36 J43 J38 J39 J40 J41 J26 J28 J35 J37 J24 J23 J27 J25 J34 RED BLACK RED BLUE BROWN WHITE RED WHITE BLUE BLUE GRAY WHITE YELLOW WHITE YELLOW WHITE BLUE BROWN RED BLACK ORANGE WHITE GREEN ORANGE BLACK PURPLE ...

Page 46: ...ODE UPPER ICE C F LOWER LIGHT ALARM PROBE COMPT Z2 BLACK STRIPE X 1 PROBE EVAP Z1 BLUE STRIPE X 2 PROBE EVAP Z2 BLACKSTRIPEX2 BLACK RED BLACK BLACK BLACK BLACK BLACK RED BLACK RED BLACK BLACK RED YELLOW WHITE YELLOW WHITE GREEN BLACK GREEN WHITE RIBBED RIBBED PURPLE GREEN COMPRESSOR COND FAN RIBBED WHITE J34 J24 J23 J27 J26 J28 J25 J35 J37 J38 J39 J40 J41 J42 J36 J43 J33 J29 J30 J31 J16 J17 J32 J4...

Page 47: ...43 15 24 INCH SERVICE MANUAL WIRING DIAGRAM PART NUMBER 982539 TRUE 24 DUAL ZONE WINE CABINET B VERSION PURPLE GREEN WHITE RED BROWN BLUE BLACK BLACK BLUE BROWN RED ICE C F ICE C F ...

Page 48: ...RAY GRAY GRAY GRAY WHITE WHITE WHITE WHITE GRAY WHITE BLUE BLACK BROWN N C BLUE BLACK 10K 10K J41 J39 J37 J35 J28 J26 J27 J34 J24 J1 LN REF VALVE J2 L1 J7 COMPT Z1 COMPT Z2 EVAP Z1 EVAP Z2 J33 DOOR Z1 DOOR Z2 J32 J30 DISPLAY BOARD J3 DEFROST LZ1 NO J25 LZ1 COM LZ1 NC J23 LZ2 COM LZ2 NC J36 CONDENSER LZ2 NO ICE 1 EVAP1 Z2 EVAP1 Z1 L1 COMPRESSOR J43 BOARD CONTROL YELLOW YELLOW N C WHITE YELLOW WHITE...

Page 49: ... o m p r e s s o r s a n d S p e ci f ic a t i o n s Va r i a b l e S p e e d C o m p r e s s o r D i a g n o s t ic s I n v e r t e r B o a r d D i a g n o s t ic s Ta b l e C o m p r e s s o r C o m p a r t m e n t L a y o u t COMPRESSOR INFORMATION ...

Page 50: ... from a single speed to a variable speed or vice versa Call Residential Tech support at 844 746 9423 with questions or concerns MODELS VERSIONS REFRIGERATOR WINE FREEZER ALL VERSIONS 15 INCH B VERSIONS Brand EMBRACO EMBRACO EMBRACO Model EM20HSC EM3D50HLT VEM Y3H Nominal Voltage Frequency 115 127V 60HZ 115 127V 60HZ 1 230V 53 150HZ 3 Refrigerant R 134A R 134A R 134A Start Device TSD 115V TSD2 115V...

Page 51: ... and 1600 rpm PLEASE NOTE THE VARIABLE SPEED COMPRESSOR IS A 3 PHASE DC COMPRESSOR APPLYING LINE VOLTAGE TO COMPRESSOR WILL DAMAGE IT The VCC looks very similar to a standard single speed compressor The three terminals on the side of the compressor look the same also However when taking resistance measurements around the terminals to the outside of the case do not let the different motor design ca...

Page 52: ...ould read 150V between all the rest of the terminals see example B If it does not read same voltage at all three windings suspect the speed board as being faulty INVERTER BOARD DIAGNOSTICS TABLE LED STATUS LED STATUS DESCRIPTION 1 FLASH 15 seconds Normal operation 2 FLASH 5 seconds Control communication problem Pull down cycle if inverter doesn t sense the thermostat signal for 10 minutes Normal c...

Page 53: ...r C Low Side Process Tube D High Side Process Tube E Cap Tube A Condenser Motor B Start Components C High Side Process Tube D Liquid Line Filter Drier E Low Side Process Tube A Inverter Board B Condenser Fan Motor located behind inverter board C High Side Process Tube D Cap Tube E Low Side Process Tube COMPRESSOR COMPARTMENT LAYOUT ...

Page 54: ...50 TRUE RESIDENTIAL 43 48 G o o d R e f r i g e r a t i o n P r a c t ic e s S y s t e m P r e s s u r e s Tr o u b l e s h o o t i n g R e p a i r s R e p l a c e m e n t SEALED SYSTEM ...

Page 55: ...ely 1 8 3 18 mm hole in the bottom of the accumulator IF EQUIPPED so we do not leave contaminated oil in the system After blowing this out with nitrogen be sure to braze the hole closed Be sure and test the oil from the refrigeration system for contamination using the proper test kit for the type of oil If the oil shows signs of contamination or there was a restriction in the system all of the oil...

Page 56: ...tubing then recover the refrigerant and weigh in the correct charge If your evaporator coil temperature drops and the system starts to operate correctly this is a sign that your system has a refrigerant leak This means that the refrigerant leak must be located and repaired A technician can raise system pressure up 200 psi with nitrogen to aid in the leak search If the head pressure rises but falls...

Page 57: ...R Reclaim per EPA standards Cut suction line just above joint figure 2 Rotate suction line attached to compressor out of the way Disconnect liquid line Remove 4 3 8 bolts from both left and right of the bottom panel figure 3 Insert a 2x2 to hold bottom down figure 4 Remove the pull pins located on each bolt of the compressor legs Pull compressor up to clear bolts and pull out With compressor remov...

Page 58: ...CRON VACUUM MUST BE PULLED AND CHARGE WEIGHT BACK IN REPLACING THE EVAPORATOR COIL Remove evaporator cover see probe replacement Un braze suction and cap joints at evaporator Remove evaporator coil Remove compressor see compressor replacement Replace drier filter Install evaporator coil Re braze fittings A 500 MICRON VACUUM MUST BE PULLED AND CHARGE WEIGHT BACK IN LEAK CHECK GUIDELINES True Manufa...

Page 59: ...55 15 24 INCH SERVICE MANUAL 55 58 S t a i n l e s s S t e e l C a r e A n d C l e a n i n g G a s k e t C l e a n i n g G e n e r a l M a i n t e n a n c e W a r r a n t y MAINTENANCE ...

Page 60: ...G TOOLS Use non abrasive tools when cleaning your stainless steel products The stainless steel s passive layer will not be harmed by soft cloths and plastic scouring pads Step 2 tells you how to find the polishing marks 2 CLEANING ALONG THE POLISH LINES Polishing lines or grain are visible on some stainless steels Always scrub parallel to visible lines on some stainless steels Use a plastic scouri...

Page 61: ... the interior and affected areas if mold or mildew are present 4 Rinse and dry thoroughly GENERAL MAINTENANCE Keeping the condenser coil clean will minimize required service and lower electrical cost The condenser coil is accessible from the front The condenser coil should be cleaned by removing dust and other build up from the tube assembly with vacuum or a cleaning rag When properly cleaned you ...

Page 62: ...ime labor charges only and reasonable travel time as determined by TRUE WARRANTY CLAIMS All claims for labor or parts must be made directly through TRUE All claims should include model number and serial number of cabinet proof of purchase and date of installation In case of warranted compressor the compressor model tag must be returned to TRUE along with the above listed information WHAT IS NOT CO...

Page 63: ......

Page 64: ...CONTACT US www true residential com 636 240 2400 toll free 888 616 8783 SD 12 18 MISC_2175 ...

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