Troubleshooting - Vulcan-Hart C24EA Series Service Manual

C24EA SERIES ELECTRIC CONVECTION STEAMERS - 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
Drain water not being cooled
properly.
Heat coming on without water in
steam generator.
Excessive time for steam generator
to reach operating pressure (over 25
min).
Steamer leaks water.
Water running out of drain during fill.
Steam generator water level too high.

TROUBLESHOOTING

TROUBLESHOOTING
POSSIBLE CAUSES
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).
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.
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).
1. Loose connections in water, steam or drain lines.
1. Drain valve (motorized) stuck open.
2. Control board malfunction (drain TDR).
3. Condensate thermostat (1TAS) malfunction.
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.
Page 73 of 75 F35453 Rev. A (0119)