Turbo Chef Technologies i5 service manual Does the keypad beep when

Page 63

46 TROUBLESHOOTING

Troubleshooting:

No Display – Screen is Blank

 

 

 

 

 

 

 

Does the keypad beep when

 

YES

 

 

 

a key is pressed?

 

 

 

 

 

 

 

 

 

NO

Is wiring from the control board to the display OK?

YES

NO

Replace the fuses. (page A-5 through A-6)

Correct wiring. If ribbon cable is damaged, replace the keypad (page A-5 through A-6).

Replace the power supply (page A-5 through A-6).

NO

NO

Is the power supply receiving power?

YES

Is the power supply output 24 VDC?

YES

Is pin 1 on the J7 connector receiving 5 VDC? (see schematic, page 51)

YES

Replace the display (page A-8).

NO

Replace the control

board. (page A-8)

 

Check wiring from the power supply to the control board. Correct wiring if necessary.

NO

Is the control board receiving correct VDC?

Verify voltage on pin 2 of the J7 connector is 24 VDC (see schematic, page 51).

YES

Verify 5 VDC is present on pin 1 of the J7 connector. If not, replace the control board (page A-8).

Image 63
Contents Accelerating the World of Cooking TM Page For further information, call 800.90TURBO Page Table of Contents Oven Systems Edit ModeRTD Oven Schematic Appendix Replacing Oven Components TroubleshootingReducing Fire Risk General Safety InformationPower Cord Replacement Grounding InstructionsRF Interference Considerations Specifications and Installation Oven Construction DimensionsTheory of Operation CertificationsElectrical Specifications Single PhaseMulti Phase Lifting and Placing the Oven Unpacking InstructionsInstallation Near Open Heat Source Optional Installation ItemsVoltage Selection 32.0 813 mm This page intentionally Left blank Daily Maintenance Clean the Oven Interior Remove and Clean the Wire RackRemove and Clean the Lower Jetplate Remove and Clean the Lower Air DiverterClean the Oven Exterior Clean and Dry the Oven DoorReinstall Components Clean the Drain PanOven Controls and Cooking Oven Controls Cooking Mode 1 Oven OffMode 5 Ready to Cook or Idle Mode 2 Temperature SelectMode 3 Warming Up Mode 4 SoakMode 10 Cooling Down Mode 9 Cook MoreMode 7 Cooking Mode 8 Remove Food from OvenViewing Cook Counter/Time Logs Overview of the Info ModeViewing the Fault Log Viewing the Service NumbersInfo Mode Turning Oven Options On/Off Resetting the OvenSetting the Language Setting the Date/TimeTest Mode Turning On/Off Diagnostic Mode Test Mode Testing Oven PartsTest Mode Status Indicators Test Mode Fault LogMicrowave Leakage Test Test Mode Self TestTest Mode Manufacturing Mode Microwave Power TestSerial Number Edit Changing Temperature Measurement SettingErase/Default Oven Settings Loading a MenuInserting Smart Card/USB Device Updating the SoftwareEdit Mode Single vs. Multiple Temperature Mode Overview of the Edit ModeChanging Food Group/Recipe Name Changing Set TemperaturesChanging Recipe Settings This page intentionally Left blank Oven Systems Convection System Oven Door Troubleshooting Convection SystemRemoving/Reinstalling the Oven Door Adjusting the Oven DoorOven Systems Interlock Switches Adjusting the Door SwitchesHinges and Counter-Balance Assembly = Loosen = Tighten = Loosen Slightly Step Measuring RF Leakage for Microwave SafetySurvey Meter Placement TroubleshootingCapacitors Testing a CapacitorWiring the Filament Transformers Microwave SystemHigh-Voltage Diodes Wiring the High-Voltage TransformersTesting a Filament or HV Transformer High-Voltage TransformersTesting a High-Voltage Diode Testing a Magnetron for an Open/Shorted Filament MagnetronsWave Guides Control System Relay K1 Filament Power SupplyHigh Limit Thermostat Magnetron ThermostatsSmart Card Reader Wire HarnessRelay K7 Magnetron Cooling Fan Relay K8 Stirrer MotorAir Filter Filtering SystemCatalytic Converter Drain PanTroubleshooting Fault Code Descriptions Overview of TroubleshootingF7 RTD Open Below Fault Code TroubleshootingNo YES Is the K6 mechanical Replace the F3 or F4 Are both cooling fans rotating? Yesno Non-Fault Code Troubleshooting Does the keypad beep when YES YES no Did you use a smart card or USB Smart Card Verify the USB device is Is the connection from Troubleshooting Oven Schematic Delta WYE This page intentionally Left blank Appendix Replacing Oven Components To Replace This First Remove This Comprehensive Table of Oven Components2APPENDIX Replacing Oven Components Replacing Items No Cover Removal Required Figures A-1, A-2 Figure A-1 No Cover Removal Required 16 174 5 11 12 13 15 16 Replacing Items Opening Top Cover Required Figure A-3Cover, Top I5-9243 Figure A-4 Removing Top Cover Required 13 14 15Figure A-6 Top Cover Detail Qty Figure A-7 Removing Left Side Cover Required Replacing Oven Components I5-9316 Screw, 10-32 x 3/8 lg, PFLH, 100 Deg, SS 101401 qty Oven Components For service or information
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