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MODEL C24EA - TROUBLESHOOTING
F35453 (July 2008) Page 66 of 68
TROUBLESHOOTING
Before performing any of the troubleshooting checks listed below, remove the front generator base panel and
check the LED’S on the control board for the status of the condition or component in the operating sequence. By
utilizing the troubleshooting LED’S, the Service Technician can easily determine if a component is functioning
properly or in need of repair. Refer to CONTROL BOARD.
SYMPTOM POSSIBLE CAUSES
Drain water not being cooled properly. 1. Water supply off or supply pressure incorrect.
2. Condensate thermostat (1TAS) malfunction.
3. Drain cooling solenoid (1SOL) malfunction (clogged).
4. Cavity condensate solenoid (2SOL) not receiving power.
A. Timer malfunction (upper or lower compartment).
B. Control board upper cavity relay (K8); or lower cavity
relay (K9) malfunction.
5. Cavity condensate solenoid (2SOL) malfunction (clogged).
Heat coming on without water in steam
generator.
1. Lime scale build-up on water level probes (shorted to ground).
2. Contactor malfunction.
3. WLC- LLCO contacts stuck closed. Water level control (WLC)
malfunction.
Excessive time for steam generator to reach
operating pressure (over 25 min).
1. Supply voltage incorrect.
2. Heating elements not wired correctly.
3. Contactor(s) malfunction.
4. Steam generator not filled. See Symptom - Steam generator
not filling or is slow to fill.
5. Pressure switch (2PAS) malfunction (not opening).
6. Vacuum relief solenoid (5SOL) energized or stuck open
(steam generator continues to vent and release pressure).
7. Cooking compartment steam solenoid stuck open (steam
inside compartment with timer off).
Steamer leaks water. 1. Loose connections in water, steam or drain lines.
Water running out of drain during fill. 1. Drain valve (motorized) stuck open.
2. Control board malfunction (drain TDR).
3. Condensate thermostat (1TAS) malfunction.
Steam generator water level too high. 1. Slow fill solenoid (4SOL) or fast fill/flush solenoid (3SOL) does
not shut off.
2. Lime scale build-up on high level probe (open circuit).
3. Water level control malfunction.