Wolf WKGCX 126625, WKGDX 126624, WKGX 126623, WKGC 126622 Computer Control Models only, Error Codes

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FULL SIZE GAS CONVECTION OVENS - TROUBLESHOOTING

SYMPTOMS		POSSIBLE CAUSES
Normal (Roast) mode OK, no Hold mode.	1.	Roast and Hold switch (S3) malfunction.
(Roast & Hold models only).	2.	R2 hold relay malfunction.
	3.	Roast & Hold timer malfunction.
	4.	Interconnecting wiring malfunction.

Component cooling Fan does not run.	1.	Motor inoperable.
	2.	Interconnecting wiring malfunction.

Uneven Cooking.	1.	Convection Fan motor speed/direction.
	2.	Poor combustion.
		A. Gas pressure incorrect.
		B. Exhaust vent plugged or obstructed.
		C. Snorkel Vent plugged or obstructed.
	3.	Air flow Baffles missing or damaged.

Intermittent problems.	1.	High ambient temperatures.
	2.	Wiring connections loose.
	3.	Cooling fan malfunction.

No power to temperature control.	1.	Power switch (S1) in OVEN COOL.
	2.	Door or door switch open.

COMPUTER CONTROL MODELS ONLY

SYMPTOM		POSSIBLE CAUSES
Oven does not heat.	1.	High limit switch open.
	2.	Probe malfunction.
	3.	Control malfunction.
High limit thermostat shutting off gas	1.	Probe malfunction.
burner.	2.	Control malfunction.
Oven not hot enough.	1.	Probe malfunction.
	2.	Control range high (rH1) setting to low. See SETUP MODE
		under COMPUTER CONTROL (WKGC, WKGCX).
	3.	Control malfunction.

Error Codes

In the display window, the error code will alternate between the code and the oven cavity temperature or dashes if the oven is calling for heat (heat light on). When the condition causing the error is resolved, normal oven operation can resume.

NOTE: To check a SETUP PARAMETER and its corresponding DATA VALUE, see SETUP MODE under

COMPUTER CONTROL (WKGC/WKGCX).

NOTE: If the cause of the error is not apparent, check for these conditions as they may also cause errors to occur: Electrical noise or a noise event, excess environmental moisture or temperature, or vibration.

CODE & PROBLEM	PROBABLE CAUSE	SOLUTION
Er01 - ROM checksum error	Internal ROM malfunction	Cycle power

Er02 - RAM checksum error	Internal RAM malfunction	Cycle power

Er03 - Ambient sensor error	Ambient temperature is below 32EF	Check ambient temperature at the
		control.
Er04 - Configuration error	Microprocessor malfunction	Cycle power

Er05 - EEprom error	Power loss while storing data	Cycle power

Page 63 of 64		F32700 (February 2006)

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Contents WKG Series Full Size GAS Convection Ovens Table of Contents Computer Control Models Only Tools Installation Operation Cleaning LubricationSpecifications IntroductionControl Panel Covers and PanelsTop Front Cover Bottom Front CoverControl Panel Components Removable Components ProcedureComponent Panel Components GAS Burner Temperature Probe WKGD/WKGDXGAS Solenoid Valve GAS OrificeSpark Igniter Flame Sense Ignition Control ModuleBlower and Motor Oven Doors and Bearings Independent Doors Oven Doors Simultaneous Doors Assembly RemovalDoor Catch Ball Assembly Independent Doors DisassemblyDoor Window Door Switch High Limit Thermostat Interior LightsLamp Cooling FAN Lamp AssemblySolid State Temperature Control Calibration WKGD/WKGDX Service Procedures and AdjustmentsMechanical Thermostat Calibration WKG/WKGX Solid State TemperatureTemperature Probe Test WKGD/WKGDX Temperature Probe Test WKGD/WKGDXTemp F Ohms GAS Pressure AdjustmentVerification of Spark AT Ignitor Door Switch AdjustmentBlower Adjustment Door Catch Ball Adjustment Independent Doors Door AdjustmentIntroduction ProcedureComputer Control WKGC/WKGCX Operation Setup ModeComputer Control Calibration WKGC/WKGCX Probe TestSolid State Relay Test Function Switch S3 Door SwitchComponent Function Computer Control Solid State Temperature ControlBlower Motor Motor Speed Relay R1Gas Valve Dual Solenoid Temperature ProbeMechanical Temperature Control Component LocationWKG/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 Sequence of Operation WKG, Wkgx With Roast & Hold Option Mechanical KX ThermostatNormal Roast Cycle Roast and Hold Cycle Timer Cycle Normal Roast CookingFull Size GAS Convection Ovens Electrical Operation Timer Cycle Roast & Hold Cooking WKGD, Wkgdx With Roast & Hold Option Solid State Temperature ControlTimer Cycle Normal Roast Cooking Roast and Hold Cycle Timer Cycle Roast & Hold Cooking Oven Cool Cycle Solid State Temperature Control Roast Cycle Normal Cooking Roast & Hold Standard on Computer ModelFull Size GAS Convection Ovens Electrical Operation Oven Cool Cycle Computer Control Model Temperature and Time Cycle CookingWKG, Wkgx Mechanical KX Controls SchematicsWKG, 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 ALL Models TroubleshootingComputer Control Models only Error CodesDescription Condensed Spare Parts List