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FULL SIZE GAS CONVECTION OVENS - TROUBLESHOOTING
F24682 (Rev. B, October 2007)Page 67 of 68
SYMPTOMS POSSIBLE CAUSES
Normal (Roast) mode OK, no Hold mode.
(Roast & Hold models only).
1. Roast and Hold switch (S3) malfunction.
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 COOL DOWN.
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
burner.
1. Probe malfunction.
2. Control malfunction.
Oven not hot enough. 1. Probe malfunction.
2. Control range high (rH1) setting to low. See SETUP MODE
under COMPUTER CONTROL (VC4GD, VC6GD).
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 (VC4GC/6GC).
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