Turbo Chef Technologies NGC-1007 service manual Critical Adjustment Notes, for proper procedure

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38THE OVEN DOOR

ADJUSTING THE OVEN DOOR

W A R N I N G : Procedure should be done while oven is hot. As a result, exercise extreme caution when adjusting the door.

1.Open the oven door and remove the plastic caps.

2.Ensure that the 3 screws on each side of the door are tight.

3.Remove the control panel, two 11/32” nuts and wiring from I/O board.

4.Loosen the hex screws and close the door.

5.Tap the center of the door to allow door and frame to align properly.

6.Tighten screws and reinstall the control panel.

7.Plug in the oven and perform a MW leak test (see page 31 for instructions).

Critical Adjustment Notes

1.The doors in Figures 27 and 28 are adjusted incorrectly. Note how the bottom (Figure 27) and top (Figure 28) of the door can be rotated away from the Flange.

C O R R E C T I V E A C T I O N : Loosen the hex screws and push the door towards the flange and re- tighten. The hinge springs will naturally pull the door to the flange. Tapping the center ensures a level surface and a proper seal, as opposed to pushing one end (which could cause the opposite end to lift away from the flange).

Pull the door open only 0.25” (6 mm) and let go of the handle. The door must completely snap shut on its own. If the door sticks and force is needed to finish closing it, it is out of adjustment.

NOTE: See Figure 26, page 37, Items 43-46 for illus- tration of hardware.

W A R N I N G : Check for excessive Microwave Leakage after adjusting the Cook Door. See

page 31 for proper procedure.

PREPARING THE OVEN FOR SWITCH ADJUSTMENT

1.Disconnect the power to the oven and remove left and right side covers.

2.Ensure oven door assembly is properly adjusted and all mounting screws are secured (see previous section on adjusting the oven door).

3.Ensure the left and right hinge assemblies are properly mounted to the oven flange.

Oven Burn-In Procedure

If the oven is already at its set temperature at the time of service, skip this procedure.

1.Apply power to oven.

2.Simultaneously press the BACK and ENTER keys.

3.Enter 8-6-4-8 (U-N-I-T), then press ENTER.

4.Press BURN-IN. The oven will warm up and idle for 25 minutes.

ADJUSTING THE PRIMARY AND SECONDARY

INTERLOCK SWITCHES - OLD SWITCH SETUP

The old switch assembly is identifiable by the pri- mary and secondary interlock switches being located on the left side of the oven. Also, the serial number of the oven will follow the formatting below (X = variable digit/letter):

NGC-XXXXX (North America)

NGCXX-XXXXX (International)

To properly adjust the switches, follow the proce- dure below:

1.Ensure the oven door is adjusted properly. Refer to the previous section on adjusting the oven door.

2. Unplug the oven.

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Contents Accelerating the World of Cooking For further information call Important Safety Information Please Read First Table of Contents Oven Door Microwave SystemService Parts and Illustrations Schematics and Schematic ComponentsConvection Circuit IR Element and Catalytic ConverterImportant Safety Instructions Grounding Instructions Installation, Specifications, and Maintenance Standard Features DimensionsPower Supply North America ConstructionPower Supply Latin America Power Supply Europe, Asia-PacificPower Supply South Korea Built-In Installation FigureInstallation Near Open Heat Source Figure Initial Power-up SetupOven Restraint Kit TC3-0242 KIT StackingRemove and Clean the Cooking Surface Remove the Lower Access PanelClean Oven Interior Clean Lower Access Panel AreaTheory of Operation Chapter Set Temperature, IR Element Irsp and Irsi Set Temperature, Cook Cavity CcspActual Temperature, Cook Cavity TCC Actual Temperature, IR Element TIRKeypad Fault CodeDisplay Self-Test StestFault Codes F1 Blower Running Status Bad F2 Cook Temperature LowF3 Magnetron Current Low F4 Door Monitor DefectiveThermocouple temperature is below the indicated limit F5 Magnetron Over TemperatureF7 Thermocouple Open F8 Heat LowControl System Mech Interlock Switches VDC Power SupplyK1 Mechanical Relay K2 Mechanical RelayBlower Speed Screen Faults ScreenSelf-Test Function Screen Heater Test ScreenElectronic Compartment Temperature Screen Diagnostic Display ScreenChanging the Cook Chamber Temperature Cooks ScreenAltering a Recipe Loading a Menu from a Smart Card Snooze ModeDone Screen Time ScreenEnter Key Code Function/ScreenSmart Card Reader Cable Board J3 connector Replace I/O control board Reference page 54 for a schematic of the I/O control boardPin connector If not, correct the voltage supplyTroubleshooting VAC is going to the motor controller via pins 2Refer to page 50 for motor controller troubleshooting Detailed troubleshootingIf high-limit is not tripped, follow the instructions below Microwave System Voltage Doubler Circuit Description Microwave System Filament and High Voltage Terminals ORG High-Voltage Transformers MagnetronFilament Transformers F3 FuseWave Guide Cover Replacement NGC-3036Kit, Wave Guide Cover Includes Item 31 and sealant Wiring the High-Voltage TransformersScrews, #8, SST NGC-1047Support, Frame Remove the wave guide cover. See Wave GuideProcedure for Measuring RF Leakage Wiring the Filament TransformersHow to Check a Diode Testing the High-Voltage DiodeHow to Check a High-Voltage or Filament Transformer How to Check a CapacitorComponents MagnetronRemove the top and right side covers Back and Enter keys, enter the code 9-4-2-8 and press EnterVoltage Transformers HV capacitor shorted or failing follow troubleshooting onMgtron soft key. Voltage present should be 200 +/- 10% Unplug the oven and replace relay if necessary Primary and secondary, the control would have recorded Troubleshooting see F4 Monitor Occurrence. See page 25 as well as Oven Door for Energizing the Microwave SystemOven Door Oven Door 31 for proper procedure Critical Adjustment NotesOven Burn-In Procedure Primary and Secondary Interlock Switch Adjustments and Parts PPHD, Cres Assembly Notes5963 Adjusting the Primary Interlock Switch NEW Switch Setup DIA 80 8198 AR 101Refer to Figures 35 Critical Adjustment Notes FigureActuator and toggle OK Check adjustment and wiring on Interlock switch statusNew setup for the proper adjustment procedure Door does not close freely Remove obstructions or readjustConvection Circuit Motor Controller Bmsc Main Convection HeaterHigh Limit Thermostat Convection Motor114 105 104 103 102 107 109 110 113 111108 106† Thermostat tripped Reset and determine why the thermostat Replace motor. For access to motor shaft, remove top panelCook Door Open Message Verify which switch is not actuating Readjust. See pages† Motor spins freely Verify motor windings see table below Verify motor spins freelyDisconnect control wiring Plug on schematics pages 55-63 while incrementing blowerConverter Catalytic Converter IR ElementRemoving the IR Element Installing a New IR Element Removing and Installing the Catalytic Converter119 122Schematics and Schematic Components Line Voltage Components Wire Harness Replacement P/NsLow Voltage Components Board Schematic Schematic Tornado NGC MAG Schematic Tornado Ngcew Schematic Tornado Ngced Schematic Brazil NGC Service Parts and Illustrations Relay Control SystemService Parts and Illustrations Monitor Circuit Shown in Failsafe State Microwave SystemWave Guide/Wave Guide Cover Parts Microwave System PartsSBK Oven DoorDoor Switch Parts Primary and Secondary Interlock Switch PartsPrimary Safety Switch Parts Monitor Safety Switch Parts80 81 Secondary and Monitor Safety Switch Parts Oven Door Parts 100Convection Circuit Convection Circuit Block Diagram114 105 104 103 102 107 108 106 109 110 113 111 112 Convection Circuit Parts123 Old Switch Setup 126 Wire Harness Replacement P/NIR Element and Catalytic Converter 122 119135 137 138 133 134 129 132 144 139 141153 155 156 151 152 147 150 162 157 159150 Screw, #8-32 x 3/8, Pphd NGC-2011-8 Comprehensive Part List Comprehensive Part List Comprehensive Part List Relay, K7, Magnetron Fan, Standard Europe, Asia-Pacific MPh Smart Card, Programmed call TurboChef for Part Numbers 800.90T U R B O or
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