Wolf WKGC 126622, WKGDX 126624, WKGX 126623, WKGCX 126625 Temperature Probe Test WKGD/WKGDX

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FULL SIZE GAS CONVECTION OVENS - SERVICE PROCEDURES AND ADJUSTMENTS

4.Check machine data plate for correct voltage to oven. Refer to diagram below for proper terminal locations and voltages before checking the control. Use the correct terminals for the corresponding voltage.

5.Turn the ON-OFF-OVEN COOL switch to ON.

6.Check for proper voltage across terminals 8 & 9 (120VAC) or terminals 8 & 10 (208-240VAC) for power to the control.

A.If correct, proceed to step 7.

B.If incorrect, problem is not with the temperature control (See troubleshooting section).

7.Check relay voltages on the board:

A.For 120VAC controls - check across terminals 7 & 9 for input to the internal relay and 6 & 9 for output from the internal relay.

B.For 208-240VAC controls - check across terminals 7 & 10 for input to the internal relay and 6 & 10 for output from the internal relay.

1)If input voltage to the internal relay is correct, proceed to step 8. If input voltage to the internal relay is not present, problem is not with the temperature control (See troubleshooting section).

2)If output voltage from the internal relay is correct proceed to step 8. If output voltage from the internal relay is not correct, check temperature probe as outlined under

TEMPERATURE PROBE TEST (WKGD/WKGDX).

8.Set the temperature control to the minimum setting.

NOTE: Oven temperature must be above 300°F.

9.Check for zero (0) volts AC across terminals 6 & 9 (120VAC) or 6 & 10 (208-240VAC) for no output from the internal relay.

A.If correct, temperature control is functioning properly.

B.If incorrect, check temperature probe as outlined under TEMPERATURE PROBE TEST (WKGD/WKGDX).

1)If temperature probe is ok, replace the temperature control and check calibration as outlined under SOLID STATE TEMPERATURE CONTROL CALIBRATION (WKGD/WKGDX).

TEMPERATURE PROBE TEST

(WKGD/WKGDX)

WARNING: DISCONNECT THE

ELECTRICAL POWER TO THE

MACHINE AND FOLLOW LOCKOUT /

TAGOUT PROCEDURES.

NOTE: The temperature probe used in conjunction with the Solid State Temperature control is an RTD (resistance temperature detector) of the Thermistor type. As temperature increases the resistance value decreases.

1.Remove the right side panel as outlined under COVERS AND PANELS in REMOVAL AND REPLACEMENT OF PARTS.

NOTE: If right side panel is not accessible, this component can be serviced by removing the control panel as outlined under COVERS AND PANELS.

2.Place a shielded thermocouple in the geometric center of the oven cavity and determine the temperature in the oven cavity.

3.Remove the probe lead wires from the solid state temperature control.

4.Test the probe with an ohmmeter.

A.If the measured resistance values are inside the given tolerance then the probe is functioning properly.

B.If the measured resistance values are outside the given tolerance then replace the probe and retest.

1)Check oven for proper operation.

F32700 (February 2006)

 

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Contents WKG Series Full Size GAS Convection Ovens Table of Contents Computer Control Models Only Installation Operation Cleaning Lubrication SpecificationsIntroduction ToolsCovers and Panels Top Front CoverBottom Front Cover Control PanelRemovable Components Procedure Control Panel ComponentsComponent Panel Components Temperature Probe WKGD/WKGDX GAS BurnerGAS Orifice GAS Solenoid ValveIgnition Control Module Spark Igniter Flame SenseBlower and Motor Oven Doors and Bearings Independent Doors Assembly Removal Oven Doors Simultaneous DoorsDoor Window Door Catch Ball Assembly Independent DoorsDisassembly Door Switch Lamp High Limit ThermostatInterior Lights Lamp Assembly Cooling FANService Procedures and Adjustments Solid State Temperature Control Calibration WKGD/WKGDXSolid State Temperature Mechanical Thermostat Calibration WKG/WKGXTemperature Probe Test WKGD/WKGDX Temperature Probe Test WKGD/WKGDXGAS Pressure Adjustment Temp F OhmsDoor Switch Adjustment Verification of Spark AT IgnitorBlower Adjustment Door Adjustment Door Catch Ball Adjustment Independent DoorsProcedure IntroductionOperation Setup Mode Computer Control WKGC/WKGCXSolid State Relay Test Computer Control Calibration WKGC/WKGCXProbe Test Component Function Function Switch S3Door Switch Solid State Temperature Control Blower MotorMotor Speed Relay R1 Computer ControlTemperature Probe Mechanical Temperature ControlComponent Location Gas Valve Dual SolenoidWKG/WKGX Plug, Socket and Components Standard Controls WKGD/WKGDX Plug, Socket and Components Standard Controls Full Size GAS Convection Ovens Electrical Operation WKGC/WKGCX Plug, Socket and Components Roast & Hold Standard Normal Roast Cycle Sequence of OperationWKG, Wkgx With Roast & Hold Option Mechanical KX Thermostat Timer Cycle Normal Roast Cooking Roast and Hold CycleFull Size GAS Convection Ovens Electrical Operation Timer Cycle Roast & Hold Cooking State Temperature Control WKGD, Wkgdx With Roast & Hold Option SolidTimer Cycle Normal Roast Cooking Roast and Hold Cycle Timer Cycle Roast & Hold Cooking Oven Cool Cycle Solid State Temperature Control Roast & Hold Standard on Computer Model Roast Cycle Normal CookingFull Size GAS Convection Ovens Electrical Operation Temperature and Time Cycle Cooking Oven Cool Cycle Computer Control ModelSchematics WKG, Wkgx Mechanical KX ControlsWKG, Wkgx Mechanical KX Controls, Roast & Hold Option WKGD, Wkgdx Solid State Temperature Control Full Size GAS Convection Ovens Electrical Operation WKGC, Wkgcx Computer Control Roast & Hold Standard Wiring Diagrams Full Size GAS Convection Ovens Electrical Operation WKG, Wkgx Mechanical KX Controls, Roast & Hold Option Full Size GAS Convection Ovens Electrical Operation WKGD, Wkgdx Solid State Temperature Control Full Size GAS Convection Ovens Electrical Operation Full Size GAS Convection Ovens Electrical Operation Full Size GAS Convection Ovens Electrical Operation WKGC, Wkgcx Computer Control Roast & Hold Standard Full Size GAS Convection Ovens Electrical Operation Troubleshooting ALL ModelsError Codes Computer Control Models onlyCondensed Spare Parts List Description
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