Turbo Chef Technologies NGC-1007 NGC-3036Kit, Wave Guide Cover Includes Item 31 and sealant

Page 40

30 THE MICROWAVE SYSTEM

4.Using acetone, clean the oven floor where the new wave guide cover will sit.

5.Apply a 1/8” diameter bead of high temperature RTV (included with Item 29) along the outside edge of the wave guide cover flanges.

N O T E : It is important to use the correct high temperature RTV as supplied by TurboChef.

6.Place the new wave guide cover in place. Secure with the fourteen (14) screws provided with Item 29.

7.Wait 15 minutes for RTV to cure.

8.Warm oven to set temperature and re-check the tightness of screws. Tighten if necessary.

W A R N I N G : Inside of oven and IR element are HOT! Use extreme caution during step 8.

WAVE GUIDE/WAVE GUIDE COVER PARTS

Figure 22

29.NGC-3036Kit, Wave Guide Cover (Includes Item 31 and sealant)

30.101666 Screws, #8-32 x 1/2, Cap

31.101701 Screws, #8, SST

32.NGC-1047Support, Frame

33.102809 Screws, #8-32 x 3/8” CSK (100º)

34.NGC-3017 Assy, Wave Guide, Rear

35.NGC-3015Magnetron, Rear

36.NGC-3015Magnetron, Front

37.NGC-3016Assy, Wave Guide, Front

WAVE GUIDE REPLACEMENT

1. Remove the wave guide cover. See WAVE GUIDE

COVER REPLACEMENT on page 29.

2.Remove the right side panel and frame support (Item 32).

3.If replacing the front wave guide, use the NGC- 3016 kit. If replacing the rear wave guide, use the NGC-3017 kit.

4.Remove the two (2) right and left-most screws (Item 30) that secure the wave guide to the oven floor.

5.The wave guide should now be loose enough to easily slide out from the right side of the oven.

N O T E : Be careful to not damage the insulation when removing the wave guide.

6.Install the new wave guide using the mounting screws provided with the kit (Item 34 if rear wave guide, Item 37 if front).

C A U T I O N : Do not pinch insulation between the wave guide and oven bottom.

7.Reinstall the wave guide cover.

8.Reinstall the side panel and apply power to the oven.

HIGH VOLTAGE AND FILAMENT TRANSFORMER

REPLACEMENT

Wiring the High-Voltage Transformers

The proper reinstallation of the high-voltage and fil- ament transformers is critical. Upon removing a high-voltage transformer, make sure to note where each wire was installed. Refer to the oven schemat- ics (pages 55-63) detailing the proper wiring. Specifically, T1 and T2 are located in the top-right corner of the schematics.

As shown in the schematics, transformers are installed mirror opposite and wired 180º out-of- phase. It is essential for longevity that the high-volt- age transformers remain 180º out-of-phase. This can be checked by placing a volt meter across terminals T1-1and T2-1.

With the Microwave System energized, the volt meter will read the incoming voltage (different readings for

different countries). If the meter reads 0 VAC, the

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Contents Accelerating the World of Cooking For further information call Important Safety Information Please Read First Table of Contents Microwave System Oven DoorSchematics and Schematic Components Service Parts and IllustrationsConvection Circuit IR Element and Catalytic ConverterImportant Safety Instructions Grounding Instructions Installation, Specifications, and Maintenance Dimensions Standard FeaturesPower Supply North America ConstructionPower Supply Europe, Asia-Pacific Power Supply Latin AmericaPower Supply South Korea Built-In Installation FigureInstallation Near Open Heat Source Figure Setup Initial Power-upOven Restraint Kit TC3-0242 KIT StackingRemove the Lower Access Panel Remove and Clean the Cooking SurfaceClean Oven Interior Clean Lower Access Panel AreaTheory of Operation Chapter Set Temperature, Cook Cavity Ccsp Set Temperature, IR Element Irsp and IrsiActual Temperature, Cook Cavity TCC Actual Temperature, IR Element TIRFault Code KeypadDisplay Self-Test StestFault Codes F2 Cook Temperature Low F1 Blower Running Status BadF3 Magnetron Current Low F4 Door Monitor DefectiveF5 Magnetron Over Temperature Thermocouple temperature is below the indicated limitF7 Thermocouple Open F8 Heat LowControl System Mech VDC Power Supply Interlock SwitchesK1 Mechanical Relay K2 Mechanical RelayFaults Screen Blower Speed ScreenSelf-Test Function Screen Heater Test ScreenDiagnostic Display Screen Electronic Compartment Temperature ScreenChanging the Cook Chamber Temperature Cooks ScreenAltering a Recipe Snooze Mode Loading a Menu from a Smart CardDone Screen Time ScreenFunction/Screen Enter Key CodeSmart Card Reader Cable Reference page 54 for a schematic of the I/O control board Board J3 connector Replace I/O control boardPin connector If not, correct the voltage supplyVAC is going to the motor controller via pins 2 TroubleshootingRefer 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 Magnetron High-Voltage TransformersFilament Transformers F3 FuseWave Guide Cover Replacement Wiring the High-Voltage Transformers NGC-3036Kit, Wave Guide Cover Includes Item 31 and sealantScrews, #8, SST NGC-1047Support, Frame Remove the wave guide cover. See Wave GuideWiring the Filament Transformers Procedure for Measuring RF LeakageTesting the High-Voltage Diode How to Check a DiodeHow to Check a Capacitor How to Check a High-Voltage or Filament TransformerMagnetron ComponentsRemove the top and right side covers Back and Enter keys, enter the code 9-4-2-8 and press EnterHV capacitor shorted or failing follow troubleshooting on Voltage TransformersMgtron soft key. Voltage present should be 200 +/- 10% Unplug the oven and replace relay if necessaryTroubleshooting see F4 Monitor Primary and secondary, the control would have recordedOccurrence. 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 Assembly Notes PPHD, Cres5963 Adjusting the Primary Interlock Switch NEW Switch Setup 80 81 DIA101 98 ARCritical Adjustment Notes Figure Refer to Figures 35Interlock switch status Actuator and toggle OK Check adjustment and wiring onNew setup for the proper adjustment procedure Door does not close freely Remove obstructions or readjustConvection Circuit Main Convection Heater Motor Controller BmscHigh Limit Thermostat Convection Motor109 110 113 111 114 105 104 103 102 107108 106Replace motor. For access to motor shaft, remove top panel † Thermostat tripped Reset and determine why the thermostatCook Door Open Message Verify which switch is not actuating Readjust. See pagesVerify motor spins freely † Motor spins freely Verify motor windings see table belowDisconnect control wiring Plug on schematics pages 55-63 while incrementing blowerConverter Catalytic Converter IR ElementRemoving the IR Element Removing and Installing the Catalytic Converter Installing a New IR Element119 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 Control System RelayService Parts and Illustrations Microwave System Monitor Circuit Shown in Failsafe StateMicrowave System Parts Wave Guide/Wave Guide Cover PartsOven Door SBKPrimary and Secondary Interlock Switch Parts Door Switch PartsMonitor Safety Switch Parts Primary Safety Switch Parts80 81 Secondary and Monitor Safety Switch Parts 100 Oven Door PartsConvection Circuit Block Diagram Convection Circuit109 110 113 111 112 Convection Circuit Parts 114 105 104 103 102 107 108 106Wire Harness Replacement P/N 123 Old Switch Setup 126IR Element and Catalytic Converter 122 119129 132 144 139 141 135 137 138 133 134153 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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