TurboChef C3/C Service And Repair Manual Download

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TurboChef Technologies, Inc. C Series

3-6

To disable the Time State, press the “Back
Arrow” and “Enter” keys simultaneously and

“Enter” the Access Pin “T-I-M-E” and
“Enter”. When prompted, press “9” to re-
enable or any other key to disable the Time
State.

Passwords

Edit Mode:

“Back and “Enter”

simultaneously. Enter Pin: “9” & “Enter”.

Test Mode:

“Back and “Enter”

simultaneously. Enter Pin: “9-4-2-8” &
“Enter”.

Reset Control (Soft Restart):

“Back and

“Enter” simultaneously. Enter Pin: “9-4-7-1”
& “Enter”.

Erase:

“Back and “Enter” simultaneously.

Enter Pin: “3-7-2-7” & “Enter” When asked
“Erase Menu” press “3”.

Caution:

The Erase command will

PERMANENTLY DELETE all
stored recipes and settings.

Figure 3-5: Time State

Start

Enter Cook Time
00:20

Summary of Contents for C3/C

Page 1: ... CMULTI UK C3 D C3 D EW C3 D ED C3 D UK CONVECTION MICROWAVE OVEN SERVICE AND REPAIR MANUAL TURBOCHEF TECHNOLOGIES INC www turbochef com 4240 International Parkway Suite 105 Dallas Texas 75007 USA 800 90TURBO or 1 214 379 6000 TM 2007 TurboChef Technologies Inc ...

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Page 5: ...eory of Operation Description 3 2 Glossary of Common Operating Terms 3 3 Programming Mode 3 4 Chapter 4 Fault Codes Fault Code Introduction 4 2 Fault Code Summary Matrix 4 3 Chapter 5 Test Test Function Detailed Description 5 2 Passwords for Operating C3 ovens 5 3 Chapter 6 Electrical Compartment Controls Electrical Component Locations C3 AB 6 2 Electrical Component Locations C3 C 6 3 Electrical C...

Page 6: ...ing Input Voltage at Motor Controller 8 9 Blower Circuit Defective Messages 8 10 SP 200 Blower Motor Controller Fault Codes Troubleshooting 8 11 Delta Blower Motor Controller Fault Codes Troubleshooting 8 13 Convection Motor Parts List 8 16 Chapter 9 Microwave Circuit Measuring for Microwave Radiation Leakage 9 2 Microwave Circuit Defective Messages 9 3 Magnetron Monitor Circuits 9 3 Magnetron Hig...

Page 7: ...n procedures of the oven and the procedures to edit or change a cooking program 3 THEORY OF OPERATION This chapter provides a total oven overview of all major subsystems in the oven Additionally it provides a list of major terms and programming instructions 4 FAULT CODES This chapter includes information on all fault codes currently programmed in the oven to display in the event of a major mulfucn...

Page 8: ...ct the nearest authorized service facility for examination repair or adjustment 10 DO NOT cover or block any openings on the appliance 11 DO NOT store this appliance outdoors DO NOT use this product near water for example near a kitchen sink in a wet basement or near a swimming pool 12 DO NOT immerse cord or plug in water 13 Keep cord away from heated surfaces 14 DO NOT let cord hang over edge of ...

Page 9: ...OT place any object between the oven front face and the door or allow soil or cleaner residue to accumulate on the sealing surfaces 3 DO NOT operate the oven if it is damaged It is particularly important that the oven door close properly and that there is no damage to the a Door bent b Hinges and latches broken or loosened c Door seals and sealing surfaces 4 The oven SHOULD NOT be adjusted or repa...

Page 10: ...rating compartments check the magnetron wave guide or transmission line and cavity for proper alignment integrity and connection 4 If the oven is operative prior to servicing a microwave emission check should be performed prior to servicing the oven Refer to page 6 2 of this manual for microwave leakage testing procedure 5 Any defective or mis aligned components in the interlock monitor door seal ...

Page 11: ...wer supply cord is too short have a qualified electrician or serviceman install an outlet near the appliance POWER SUPPLY CORD REPLACEMENT If the power supply cord is damaged it MUST BE replaced by the manufacturer or its service agent or a similarly qualified person in order to avoid a hazard General Note about Construction Please be advised that the TurboChef C3 series ovens are manufactured in ...

Page 12: ...vi SAVE THESE INSTRUCTIONS ...

Page 13: ...exhibit sensitivity to signals below these limits resulting in interference with that equipment If your equipment experiences interference the following steps should be considered 1 Increase the physical separation between this oven and the sensitive equipment 2 If the sensitive device can be grounded do so following accepted grounding practices 3 If battery powered microphones are being affected ...

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Page 15: ...CHAPTER 1 INSTALLATION SPECS ...

Page 16: ...installing contractor Maximum Power Usage Convection Oven Microwave Oven 5 2 kW 2 0 kW TABLE 1 1 Oven Specifications INSTALLATION The TurboChef Technologies Inc oven is manufactured to comply with applicable CE ETL FDA and FCC requirements In addition the unit is ETL classified to NSF 4 Note Some European models may or may not be certified under US FDA and or ETL regulations All equipment is desig...

Page 17: ...ertops There must be 2 5 08 cm between the top of the unit and any shelf or other surface The oven must be installed level front to back and side to side The oven legs may be bolted to the counter top if desired Countertop surface must be at least 30 inches deep Operator is responsible for proper placement on the countertop TurboChef will not be responsible should an oven fall off a countertop due...

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Page 19: ...CHAPTER 2 CLEANING OPERATING ...

Page 20: ...Care Oven Cleaner and set aside to allow the cleaner to penetrate DO NOT soak the Ceramic Cook Platter or Waveguide Cap in water 2 Clean the ceramic cooking platter and wave guide cap using brushes and scrub pads Rinse to remove all cleaner and debris Inspect for damage and replace as required 3 Reinstall the clean wave guide cap into the oven This will protect the wave guide seal while the cook c...

Page 21: ...CHAPTER 3 THEORY OF OPERATION ...

Page 22: ...rowning the food you know to focus on the Convection Circuit not the Microwave System If an oven is browning the food but not heating the food you will know to focus on the Microwave System The following block diagram represents the oven s different systems and their critical components If you are experiencing problems with any of the components listed below please turn to the appropriate section ...

Page 23: ...t MW Percent of microwave used during a cook event Cook Temperature Set Point Temperature should be a constant parameter The same cook temperature should be used by all cook recipes MODES Mode The software environment which allows certain operations to occur There are several modes STANDBY COOK WARM UP and COOL DOWN in which the oven can operate Standby Mode The standby mode is similar to oven off...

Page 24: ...the Enter Key to set CC Altering a Recipe The C3 oven control has 64 unique Recipes available for the operator The Display will show 1 page of 8 Recipe Groups Each Recipe Group contains 8 Subgroups or Recipes See Figures 3 1 and 3 2 To alter a Recipe enter Edit Mode as described above After you have entered the Access Code and set CC the screen will display the 1 st set of 8 Recipe Groups Now sele...

Page 25: ...es Press the Back Arrow 4 times to exit the Edit mode User Configurable Options The user may enable or disable the following options Edit Mode For security purposes the Edit Mode can be disabled by pressing the Back Arrow and Enter keys simultaneously and entering the Access Pin T I D E Enter When prompted select either 9 to re enable Edit Mode or any other key to disable Edit Mode Done State The ...

Page 26: ...te Passwords Edit Mode Back and Enter simultaneously Enter Pin 9 Enter Test Mode Back and Enter simultaneously Enter Pin 9 4 2 8 Enter Reset Control Soft Restart Back and Enter simultaneously Enter Pin 9 4 7 1 Enter Erase Back and Enter simultaneously Enter Pin 3 7 2 7 Enter When asked Erase Menu press 3 Caution The Erase command will PERMANENTLY DELETE all stored recipes and settings Figure 3 5 T...

Page 27: ...CHAPTER 4 FAULT CODES ...

Page 28: ...raw is being monitored by the control board which has a current transformer mounted on it See section 6 LOW COOK TEMP or F2 LOW TEMP the temperature set for the C3 SERIES is not being maintained within 84 o F 46 o C differential of the Cook Chamber Setpoint It is referenced by the cook chamber type K thermocouple Note It may also be controlled by the heat exchanger thermocouple See section 5 MAG O...

Page 29: ...EC OVR TMP F6 EC TEMP X X X 6 HX RISE LOW Same X X 8 THERMO OPEN Same X X X 8 OVEN DOOR AJAR Same X X X 7 EC TEMP HIGH F6 EC TEMP X X X 6 CLOSE OVEN DOOR same X X X 7 TABLE 4 1 Notes 1 All Fault Codes listed in BOLD will terminate a Cook Cycle upon discovery 2 Any fault occurrence during Cook mode will be logged in the Fault Counter 3 ELEC OVR TMP EC TEMP HIGH F6 fault code will not terminate a co...

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Page 31: ...CHAPTER 5 TEST ...

Page 32: ...f the filaments are already on MAG ON RF xxx is displayed xxx is the fluctuating microwave power measured in the wave guide Any time the MGTRON key is released the magnetron turns off The filament power magnetron cooling fan and mode stirrer remains on for three minutes NOTE The RF power indication is optional on the C3 C SERIES model oven Diagnostic Display The DIAG key turns on or off the diagno...

Page 33: ...ts Fahrenheit or Celsius for temperature displays Cook Fault Counter The FAULTS or FF key is used to read and reset the oven cook fault counters Press the 0 key to reset the fault counter displayed On ovens with FF repeat pressing the FF button to view all six fault counters The faults include BLOWER STATUS blower motor speed controller LOW COOK TMP cooking temperature LOW MAG CURR microwave curre...

Page 34: ...NTER keys At the Enter Pin ____ prompt key in 3348 EDIT and press Enter At the Please Enter New PIN ____ prompt key in from 1 to 4 digits and press Enter Reference Chapter 3 To enable or disable the Please Place Food in Oven screen press and hold BACK and ENTER keys At the Enter Pin ____ prompt key in 5623 LOAD and press Enter At the Load Screen prompt press 9 Y to enable the load screen any other...

Page 35: ...CHAPTER 6 ELECTRICAL CONTROLS SYSTEM ...

Page 36: ...ROLLER 19 CONVECTION MOTOR 20 N A 21 N A 22 THERMOSTAT MAGNETRON 212F 23 THERMOSTAT CLOSE ON RISE 120F ELECTRICAL COMPARTMENT COOLING FAN K6 19 3 14 4 15 16 11 17 18 1 6 2 8 7 9 3 13 10 22 23 1 PHASE EC BOX WMF 1 Circuit Breaker CB1 35Amp T0322 10 COOLING FAN M9609 2 Fuses 2x12 AMP C3 AB C3 C 100596 11 MAGNETRON COOLING FAN T0262 25AMP C3 C 100597 12 STIRRER MOTOR 101891 3 Convection Heat High Lim...

Page 37: ... THERMOSTAT CLOSE ON RISE 120F ELECTRICAL COMPARTMENT COOLING FAN K6 19 14 4 15 16 11 17 18 2 1 6 8 7 9 3 13 10 22 23 1 PHASE C3 C EC BOX WMF 1 Circuit Breaker CB1 35Amp with trip coil T0322 10 COOLING FAN 100519 2 Fuses 2x12 AMP C3 AB C3 C 100596 11 MAGNETRON COOLING FAN T0262 25AMP C3 C 100597 12 STIRRER MOTOR 101891 3 Convection Heat High Limit R7603 13 HV DIODE 100480 4 24VDC POWER SUPPLY M960...

Page 38: ...LAMENT TRANSFORMER 102091 6a K2 RELAY SOCKET T0278 T0309 16 MAGNETRON HV TRANSFORMER 102093 6b K3 RELAY SOCKET T0278 T0309 17 MAGNETRON 100860 6c K6 RELAY SOCKET T0278 T0309 18 BLOWER MOTOR SPEED CONT 100441 19 CONVECTION MOTOR ASSY C0299 7 K5 SOLID STATE RELAY FOR HEATER 101285 20 TRIP COIL BREAKER 103171 8 K4 SOLID STATE RELAY FOR MAGNETRON 101285 21 K7 SOLID STATE RELAY HEATER 101285 9 SMT CONT...

Page 39: ...LAMENT TRANSFORMER 102091 6a K1 RELAY SOCKET T0278 T0309 16 MAGNETRON HV TRANSFORMER 102093 6b K2 RELAY SOCKET T0278 T0309 17 MAGNETRON 100860 6c K3 RELAY SOCKET T0278 T0309 18 BLOWER MOTOR SPEED CONT 100441 19 CONVECTION MOTOR ASSY C0299 7 K5 SOLID STATE RELAY FOR HEATER 101285 20 TRIP COIL BREAKER 103171 8 K4 SOLID STATE RELAY FOR MAGNETRON 101285 21 K6 SOLID STATE RELAY HEATER 101285 9 SMT CONT...

Page 40: ...0309 Relay 24 VDC Coil 240 VAC Output Socket All 7 101285 Solid State Relay for Heater All 8 101285 Solid Sate Relay for Magnetron All 9 T0265 SMT Controller All 10 M9609 Electrical Compartment Cooling Fan C3 AB C3Multi 10 100519 EBM Electrical Compartment Cooling Fan C3 C C3 CMulti 11 T0262 Magnetron Cooling Fan All 12 101891 Stirrer Motor All 13 100480 HV Diode All 14 100206 HV Capacitor 2500 V ...

Page 41: ...el s 19 C0299 Convection Motor Assy All 20 103170 Circuit Breakers CB2 CB3 15 Amp C3Multi C3 CMulti 21 101285 K7 Solid State Relay C3Multi C3 CMulti 22 102070 Thermostat Magnetron 212F All 23 102085 Thermostat EC Box All NS 100542 EMI Filters not shown C3Multi C3 CMulti NS T0286 EMI Filter C3 AB C3 C ...

Page 42: ...9 CONTROL PANEL SHEET METAL C3 C C3 CMULTI 3 NA VFD DISPLAY CONNECTOR All 4 T0264 KEYPAD All 5 T0374 CONTROL MOUNTING PLATE C3 AB C3MULTI 5 C0374 CONTROL MOUNTING PLATE C3 C C3 CMULTI 6 T0238 VFD DISPLAY All CONTROL PANEL ASSEMBLY AND COMPONENT 1 ASSEMBLED CONTROL PANEL 2 KEYPAD RIBBON CABLE 3 DISPLAY CONNECTOR 1 2 3 4 5 6 CONTROL PANEL ASSEMBLY AND COMPONENT 4 KEYPAD 5 CONTROL MOUNTING BRACKET 6 ...

Page 43: ... and if the display shuts down check for Loose Wire Connection or Magnetron Cooling Fan shorted 2 Output is 24VDC Verify I O Board has 24 VDC by checking the voltage on the D6 diode striped end to Chassis Reference Chapter 10 for details a No voltage Check wires from Power Supply to I O Board b Voltage is 24VDC but 5VDC is not present on the I O Boards J3 connector Change I O Board Reference Chapt...

Page 44: ... key until the oven screen displays OVEN OFF then Press and hold the BACK and ENTER keys simultaneously and then key in PIN 9 4 2 8 access code then ENTER This will allow you to enter into the test mode to manually energize the magnetron Step 2 Place a load inside the oven about 275ml of water or an approximate amount inside a coffee cup Step 3 Clamp an ammeter on K4 1 wire same wire going thru CT...

Page 45: ...CHAPTER 7 COOK DOOR ASSEMBLY ...

Page 46: ...he sequence must reverse i e P S and then M If this sequence is not correct YOU MUST READJUST THE SWITCHES See section 7 6 WHY DOES THE CIRCUIT BREAKER TRIPPED IF THE SWITCHES ARE MISALIGNED In addition to the High Voltage circuit it is imperative to understand how the monitor circuit operates The Monitor Circuit is a failsafe circuit that is designed to protect the operator if both the Primary an...

Page 47: ...rrent is 20amps 208V element is 9 ohms current is 23 amps C3 C oven only Check the 25 Amp fuse inline with the CB1 and the heater Reference Chapter 8 Solid state contactor K5 K7 for hot air element See above for correct current draw The coil operates on 24v dc Solid state relays tend to Fail closed Check with VOM meter High limit K1 relay C3 AB and C3 C only High limit tripped 670 F 350 C Reset hi...

Page 48: ... the bottom of the circuit breaker and pull the breaker up and out to remove it from the din rail allowing access to the switch brackets on the right side of the oven Note Refer to page 7 11 DOOR ADJUSTMENT along with this section if the cam follower bracket assembly has to be adjusted and tightened This is very important to prevent any potential damage to the door hardware from interference and t...

Page 49: ...t switch bracket by loosening the screws as necessary FINAL TESTING OF DOOR SWITCH ADJUSTMENT 19 After the door switch assemblies have been properly aligned and adjusted on both sides confirm that with the door closed that all three switches contacts are closed 20 As the door is opened slowly confirm that all three switches operate in the correct sequence i e as the door is opened the switches ope...

Page 50: ...TurboChef Technologies Inc C Series 7 8 Figure 7 3 Interlock Placement Differences C3 AB vs C3 C ...

Page 51: ...FOLLOWER ROLLER 2 TRAILING ARM NOTES 3 IN DOOR CLOSED POSITION THE TRAILING ARM SHOULD SEAT AS SHOWN ON THE CAM NOTE BOTH THE LEFT AND RIGHT SIDES SHOULD BE ADJUSTED SUCH EACH SIDE SEATS AS SHOWN 4 AS THE DOOR OPENS THE TRAILING ARM MUST CONTACT CAM DURING FULL MOTION OF THE DOOR 2 4 1 3 ...

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Page 53: ...Cook Door 7 9 Figure 7 58 Interlock Switch Adjustment ...

Page 54: ...hinge bars not shown through the lower slots Use caution in installing the door to avoid bending the hinge bars If the bars bind in their slots gently wiggle the door to free them c Attach the bars to the door hinge bar mounting brackets 13 with four 10 32 M5 UNF screws 11 on each side finger tight Apply 242 thread locker to screw threads prior to installation d Close the door and apply even press...

Page 55: ... the lower edge of the sealing planes will be tight and there will be an excessive gap between the sealing planes along the top edge In this position with the top molding removed most of the hex head of the shunt screws will be seen c If the hinge bars have not been pushed far enough into their brackets the upper edge of the sealing planes will be tight and an excessive gap will occur between the ...

Page 56: ...TurboChef Technologies Inc C Series 7 12 FIGURE 7 6a C3 C C3 Cmulti Left Side ...

Page 57: ...534 INTERLOCK SWITCH BRACKET C3 C C3 CMULTI 5 T0330 INTERLOCK SECONDARY SWITCH C3 AB C3MULTI 5 C0330 INTERLOCK MONITOR SWITCH C3 C C3 CMULTI 6 C0330 INTERLOCK PRIMARY SWITCH C3 C C3 CMULTI 7 T0516 DOOR HINGE BAR MOUNTING BRACKET C3 AB C3MULTI 7 C0516 DOOR HINGE BAR MOUNTING BRACKET C3 C C3 CMULTI 8 T0542 SPRING TRAILING ARM C3 AB C3MULTI 8 C0542 SPRING TRAILING ARM C3 C C3 CMULTI 9 T0535 DOOR SPRI...

Page 58: ...tion Used on Model s 12 T0560 CAM FOLLOWER ASSY C3 AB C3MULTI 12 C0560 CAM FOLLOWER ASSY C3 C C3 CMULTI 13 T0541 CAM FOLLOWER ROLLER C3 AB C3MULTI 13 C0541 CAM FOLLOWER ROLLER C3 C C3 CMULTI 14 T0548 GUIDE BLOCK C3 AB C3MULTI 14 C0548 GUIDE BLOCK C3 C C3 CMULTI 15 TC3 0179 HELPER SPRING C3 AB C3MULTI 15 C0708 HELPER SPRING C3 C C3 CMULTI ...

Page 59: ...ght Side K6 K3 K2 K6 K4 K5 DOOR REMOVAL AND REPLACEMENT RIGHT SIDE 1 TRAILING ARM 2 INTERLOCK ACTUATOR BRACKET 3 INTERLOCK SECONDARY SWITCH 4 INTERLOCK SWITCH BRACKET 5 SPRING TRAILING ARM 6 CAM FOLLOWER ROLLER 7 CAM FOLLOWER ASSY 8 HELPER SPRING 1 2 4 3 6 7 8 ...

Page 60: ... C3 C C3 CMULTI 4 C0534 INTERLOCK SWITCH BRACKET C3 C C3 CMULTI 4 T0534 INTERLOCK MONITOR SWITCH BRACKET C3 AB C3MULTI 4 T0534 INTERLOCK PRIMARY SWITCH BRACKET C3 AB C3MULTI 5 T0542 SPRING TRAILING ARM C3 AB C3MULTI 5 C0542 SPRING TRAILING ARM C3 C C3 CMULTI 6 T0514 CAM FOLLOWER ASSY C3 AB C3MULTI 6 C0514 CAM FOLLOWER ASSY C3 C C3 CMULTI 7 T0541 CAM FOLLOWER ROLLER C3 AB C3MULTI 7 C0541 CAM FOLLOW...

Page 61: ...AME PLATE AL 27 N A 28 N A 29 N A 30 ASSY GUIDE BLOCK C3 C DOOR ASSEMBLY 1 SHUNT DOOR 2 SEAL ENVIRONMENTAL 3 SHUNT SUPPORT SHIM 4 SCREW M4 X 12MM SS 5 COVER DOOR PLASTIC 6 SHUNT SUPPORT DOOR 7 WASHER M4 SS 8 WASHER LOCK M4 SS 9 NUT M4 SS 10 DOOR INSULATION 11 DOOR INSULATION 12 HANDLE COOK CHAMBER 13 SCREW M4 X 12MM SS 14 SPACER DOOR HANDLE 15 ASSY ARM RH 16 WASHER M4 SS 1 2 3 4 5 6 8 9 7 10 11 12...

Page 62: ...CMULTI 7 N A WAHSER M4 SS C3 C C3 CMULTI 8 N A WASHER LOCK M4 SS C3 C C3 CMULTI 9 N A NUT M4 SS C3 C C3 CMULTI 10 C0575 DOOR INSULATION C3 C C3 CMULTI 11 C0431 DOOR INSULATION C3 C C3 CMULTI 12 C0267 HANDLE COOK CHAMBER C3 C C3 CMULTI 13 N A SCREW M4 X 12 MM SS C3 C C3 CMULTI 14 C0350 SPACER DOOR HANDLE C3 C C3 CMULTI 15 C0500 ASSY ARM RH C3 C C3 CMULTI 16 N A WASHER M4 SS C3 C C3 CMULTI 17 N A WA...

Page 63: ...er Description Used on Model s 22 C0508 ASSY BEARING BLOCK C3 C C3 CMULTI 23 C0507 PLATE DOOR REINFORCING C3 C C3 CMULTI 24 N A SCREW M4 X 16 MM SS C3 C C3 CMULTI 25 C0193 OUTER DOOR SKIN C3 C C3 CMULTI 26 C0581 TURBOCHEF NAME PLATE Al C3 C C3 CMULTI 30 C0514 ASSY GUIDE BLOCK C3 C C3 CMULTI ...

Page 64: ...TurboChef Technologies Inc C Series 7 21 Figure 7 9 C3 AB and C3Multi Door Assembly ...

Page 65: ... AB and C3 Multi 16 T0360 INSULATION KIT C3 AB and C3 Multi 17 T0267 HANDLE DOOR C3 AB and C3 Multi 18 3136 SCREW CAP 20 X 75 HEX SS C3 AB and C3 Multi 19 M0417 WASHER LOCK C3 AB and C3 Multi 20 T0450 WASHER FENDER C3 AB and C3 Multi 21 T0350 SPACER C3 AB and C3 Multi 22 T0508 BEARING AND BLOCK ASSY C3 AB and C3 Multi 23 T0503 PIVOT PIN AND BRACKET ASSY C3 AB and C3 Multi 24 T0427 SHUNT SUPPORT SH...

Page 66: ...CHAPTER 8 CONVECTION CIRCUIT ...

Page 67: ......

Page 68: ...ild up over time A properly operating catalytic converter causes the conversion of airborne grease into water carbon dioxide and small amounts of nitrogen and oxygen The catalytic converter acts as a combustion chamber for the airborne grease The catalysts present on the filter lowers the ignition temperature of the airborne grease from approximately 700ºF 371ºC to 450 550ºF 232 288ºC allowing com...

Page 69: ... the ON mode P S M t h H A W Notes In order for the heaters to energize the blower motor must be operational usually indicated by status indicator A always un highlighted IMPORTANT HEATER DISCUSSION The C series oven uses either an open coil or sheathed heater The open coil element is obsolete but may still be found in C3 AB ovens and C3 C ovens This heater is susceptible to cleaners not approved ...

Page 70: ...imit switch See Figure 8 2 2 Check heater fuse F3 If fuse is blown check for short to chassis on all heater wires 3 Check input current on heater wires See Page 8 3 4 Check operation of the heater relay See Page 8 3 5 Check blower operation Page 8 9 6 Check crimp connections on controller 7 Check HX Thermocouple LOW COOK TMP F3 LOW TEMP CC Cooking Chamber temperature has dropped more than 84 F 47 ...

Page 71: ...ytic Converter Access FIGURE 8 2 Thermocouple Thermostat Locations 9 5 HEATER ASSEMBLY SEE FIG 5 3 FOR ALL OPTIONS HEATER BAFFLE C3 AB AND C3 C ONLY CATALYTIC CONVERTER INNER BRACKET Hi Limit Thermostat 18 HX Thermocouple 17 12 14 or 15 1 16 ...

Page 72: ... 4 WASHER FLAT HEATER 5 8 5 WASHER FIBER 5 8 6 NUT 5 8 18 CRES OPEN COIL HEATER ASSEMBLY MODELS C3 C3 AB AND C3 C OBSELETE 7 PLATE C3 HEATER MOUNTING 8 GASKET 3PHASE HEATER COVER 9 HEATER ELEMENT OPEN COIL 10 WAHER SPLIT LOCK 8 32 C3 C3 AB ONLY M4 C3 C 11 SCREW 8 32 X 38 PPHD CRES C3 C3 AB ONLY M4 X 10 C3 C 7 8 9 4 5 6 10 11 OBSOLETE MODEL Note TC3 0200 Kit Retrofit Sheated Heater replaces the abo...

Page 73: ...TER ELEMENT OPEN COIL OBSELETE C3 AB C3 C 10 102390 WASHER SPLIT LOCK 8 CRES C3 AB 10 102230 WASHER SPLIT LOCK M4 C3 C 11 101665 SCREW 8 32 PPHD CRES C3 AB 11 101671 SCREW M4 X 10 mm C3 C 12 T0185 CATALYTIC CONVERTER All 13 100440 BLOWER MOTOR SPEED CONTROLLER SP200 All 13 100441 BLOWER MOTOR SPEED CONTROLLER DELTA All 14 T0204 PEPPERONI CATCHER SMALL HOLE C3 AB C3 C 15 TC3 0197A PEPPERONI CATCHER...

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Page 75: ...occur on the air speed 4 Verify status indicator A at the bottom of the screen is not highlighted P S M t h H A W 5 Verify that the blower motor rotates freely and does not vibrate from imbalance 6 Verify that the blower shaft rotates in the counter clockwise CCW direction when viewing the shaft from the right side of unit 7 While in the TEST mode Open the cook door and ramp the blower speed from ...

Page 76: ...ntroller see wiring diagram section for details Pins 1 2 Reliance Controller Pins 2 3 Delta Controller 2 Check Auxillary fuses refer to schematic 3 Verify incoming voltage is present on controller input 200 240VAC 4 Verify status indicator A is not highlighted See Page 5 3 5 Check controller output voltage on motor controller see Table 8 1 6 Check fault messages on blower motor speed controller re...

Page 77: ...mpting to start drive 3 Under Voltage Low input line Temporary loss of input line Check input line to verify voltage is within operating specifications 4 Over Voltage High input line Decel time too fast Overhauling load Check input line to verify voltage is within operating specifications Increase decel time 5 Drive Overload Excessive driven load Reduce the load 5 Motor Overload Excessive driven l...

Page 78: ...y output phase is not grounded Verify motor is not damaged Phase U V Phase U W 10 Phase to Phase Short Phase V W Verify output wiring is correct Verify motor is not damaged 11 Checksum Failure Parameter value out of range Load default parameter values P 60 1 then cycle power If fault persists replace drive 12 Microprocessor Fault Internal processor error Cycle power If fault persists replace drive...

Page 79: ... OH The AC drive temperature sensor detects excessive heat 1 Ensure that the ambient temperature falls within the specified temperature range 2 Make sure that the ventilation holes are not obstructed 3 Remove any foreign objects on the heatsinks and check for possible dirty heat sink fins 4 Provide enough spacing for adequate ventilation Lu The AC drive detects that the DC bus voltage has fallen b...

Page 80: ...be programmed 1 Switch off power supply 2 Check whether the input voltage falls within the rated AC drive input voltage 3 Switch the AC drive back on cF2 Internal memory IC can no be read 1 Check the connections between the main control board and the power board internal to motor controller 2 Reset drive to factory defaults cF3 Drive s internal circuitry abnormal 1 Switch off the power supply 2 Ch...

Page 81: ...MIN HEAT SLINGER TO PLATE 0 150 MAX FAN BLADE TO CAP 7 CLAMP BEARING SPRING 8 BLOCK BLOWER BEARING SEAL 9 SPRING COMPRESSION 10 HEAT SLINGER 11 SET SCREW USE LOCTITE 290 12 605 WOODRUFF KEY CONVECTION MOTOR ASSEMBLY 1 MOTOR 1 HP 2 SPACER BLOWER MOUNT 3 CAP BLOWER 4 RING FAN BLADE 5 FAN BLADE 6 HUB FAN SMALL ...

Page 82: ... CMULTI 7 7001179 CLAMP BEARING SPRING All 8 700 1177 BLOCK BLOWER BEARING SEAL All 9 101733 SRING COMPRESSION All 10 102708 HEAT SLINGER All 11 101715 SET SCREW 8 X 5 16 SS C3 AB C3MULTI 11 101722 SET SCREW M4X6 SS C3 C C3 CMULTI 12 100730 605 WOODRUFF KEY All 13 102320 BUTTON HEAD SCREWS All Special Kits Assemblies Blower Hub Kit P N TC3 0238 consists of the following part numbers 1 HUB FAN SMAL...

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Page 85: ...CHAPTER 9 MICROWAVE CIRCUIT ...

Page 86: ...tes that the door switch has engaged 7 Test for microwave leakage as follows This test must be done in conformance with 21 CFR Chapter 1 Part 1030 Performance Standard for Microwave and Radio Frequency Emitting Product Part 1030 10 Microwave Ovens C Requirements 1 Power Density Limit The equivalent plane wave power density existing in the proximity of the external oven surface shall not exceed 1 m...

Page 87: ...diode 2 Check operation of the monitor relay door operation 3 Check input current to K4 1 wire Microwave circuit measures approximately 9 Amps If higher than 15A replace anode transformer See 9 8 4 Check diode 5 Check capacitor 6 Check magnetron 7 Check ssr operation 8 Filament Transformer 9 Current Transformer on computer board See Page 6 10 MAG OVER TEMP F5 MAG TEMP MAG OVER TEMP F5 MAG TEMP Not...

Page 88: ...TurboChef Technologies Inc C Series 9 4 ...

Page 89: ...ormally The Monitor Circuit consists of the Primary Interlock Switch Secondary Interlock Switch Monitor Safety Switch Monitor Relay and the trip coil on the 35A circuit breaker When the Cook Door closes during normal operation the Monitor and Secondary Primary Switches close in this order When all switches are closed the microwave system is allowed to operate If during normal operation either Inte...

Page 90: ...ent Flow 2400 2400 VDC 4800 VDC B A C 4800 V CAPACITOR CHARGES ON POSITIVE VOLTAGE SWING CHARGED CAPACITOR PLUS TRANSFORMER ON NEGATIVE VOLTAGE SWING 2400 V 2400 V A 0 1 The Magnetron Transformer steps up the input voltage to approximately 2400 volts peak 4800 volts peak to peak 2 The High Voltage Capacitor charges to 2400 volts on the positive going voltage via the High Voltage Diode s forward co...

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Page 92: ...ment In this cases the current going to the high voltage transformer may lag This can result in a MAG CURR LOW message DANGER Do not attempt to measure voltage at pins 4 and 5 of filament transformer without actually isolating it from the high voltage circuit disconnect anode transformer capacitor magnetron and diode If not isolated the circuit will have a potential of 4800 volts Checking the fila...

Page 93: ...ires from the F and FA terminals 3 An ohmmeter connected between the filament terminals F FA should indicate a reading of less than 1 Ohm 4 A continuity check between either filament terminal and the magnetron chassis should indicate an infinite resistance open MAGNETRON REMOVAL AND REPLACEMENT 1 Remove door hinge bar support angle 2 Remove magnetron cooling fan duct work and magnetron as an assem...

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Page 95: ...3 2 Ohm 1 3 27 8 Ohm Secondary DCR 5 6 46 39 Ohm 5 7 54 00 Ohm Secondary DCR 4 5 020 Ohm Input Voltage 208 240 VAC 50 60 HZ Input Voltage 200 208 240 10 50 60 HZ Input Current 9 0 Amps RMS Input Current 0 42 Amps 208 VAC 0 35 Amps 240 VAC Anode Voltage 2400 VDC Peak 0 83 Amps Filament Voltage 4 6 VAC 14 Amps TABLE 6 1 Transformer Specifications DIODE TESTING WARNING DO NOT attempt to measure HV di...

Page 96: ... FRONT VIEW 5 6 7 50 HZ 60 HZ 1 2 3 1 50 HZ 7 6 5 4 5 2 F 3 4 60 HZ FA 208 240 VAC INPUT MAGNETRON 4500 VPK 415 MA 15 KV HV DIODE 1 05 uF 60 HZ 1 20 uF 50 HZ HV CAPACITOR PRIMARY COMMON 240 VAC 200 208 VAC UNUSED WINDING 4 5 4 6 VAC SECONDARY 0 20 OHMS PRIMARY COMMON 1 3 240 VAC 27 8 OHMS 1 2 200 208 VAC 23 2 OHMS HV ANODE WINDING SECONDARY 5 6 60 HZ 46 39 OHMS 5 7 50 HZ 54 00 OHMS 3 4 UNUSED FILA...

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Page 98: ...TurboChef Technologies Inc C Series 9 11 Waveguide Components Figure 9 6 Waveguide Assy ...

Page 99: ...B C3MULTI 6 C0391 MOUNTING PLATE STIR MOTOR C3 C C3 CMULTI 7 T0283 SPROCKET MOTOR 4MM BORE All 8 100891 MOTOR 6 RPM All 9 101550 SCREW 4 40 X 5 8 PPH SS C3 AB C3MULTI 9 TBD SCREW M3 x 12 mm SS C3 C C3 CMULTI 10 102370 WASHER SPLIT LOCK 4 SS C3 AB C3MULTI 10 TBD WASHER SPLIT LOCK M4 SS C3 C C3 CMULTI 11 101590 SCREW 6 32 X 3 8 PPH SS C3 AB C3MULTI 11 TBD SCREW M4 x 8 MM SS C3 C C3 CMULTI 12 102380 ...

Page 100: ...700 1339 1 CLAMP WAVEGUIDE SINGLE WIRE C3 AB C3MULTI 16 C700 1339 1 CLAMP WAVEGUIDE SINGLE WIRE C3 C C3 CMULTI 17 700 1321 SEAL RING WAVEGUIDE C3 C C3 CMULTI 18 102650 WAVE SPRING WASHER All 19 700 1213 PLUG WAVEGUIDE QUARTZ All 20 700 1333 SEAL PLUG TEFLON All NS 100480 HV Diode All NS 100206 HV Capacitor 2500 V All NS 102091 Filament Transformer All NS 102093 Magnetron Transformer T1 All ...

Page 101: ...CHAPTER 10 I O Board Schematics ...

Page 102: ...TurboChef Technologies Inc C Series 10 2 ...

Page 103: ...10 5 ...

Page 104: ...TurboChef Technologies Inc C Series 10 4 ...

Page 105: ...L N L N 4 3 2 1 2 1 3 4 K1 MAGFAN 8130F 44 93 T1 820MW4 8 7 8 7 6 5 4 3 2 D 1 A 6 5 4 C B 3 2 D 1 C 0 7 8 4 S e r v i c e M a n u a l 2 0 8 2 4 0 O R3 8 0 4 1 5 1 O R3 P H A S E 5 0 6 0 H Z S C H E M A T I C C 3 CM U L T I D ON O TS C A L ED R A WI N G ...

Page 106: ...10 6 1 3 2 4 7 6 5 1 Software EPROM 2 R51 Beeper Volume Adjustment 3 Microprocessor 4 P3 Blower Motor Controller Mode Selector SP200 1 2 5 R24 RF Fluctuation Adjustment Optional 6 R42 5 Volt Reference Adjustment 7 P1 5VDC Reference Point ...

Page 107: ...ignal wires are terminated here 9 J5 26 Pin Flat Cable from front panel VFD 10 J3 5 VDC Power Supply to Vacuum Fluorescent Display 11 J1 RF Cable Connection Optional 12 J6 RS232 Cable Menu Download port 13 J4 Keypad membrane cable 14 Interlock Relays Primary and Secondary ...

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