Vulcan - Vulcan-Hart C24EA Series Service Manual

C24EA SERIES ELECTRIC CONVECTION STEAMERS - TROUBLESHOOTING
SYMPTOM
Steamer will not heat.
Steam generator not filling or is slow
to fill.
Steam leaks around door.
Water leaks around door.
F35453 Rev. A (0119)
POSSIBLE CAUSES
1. Check incoming voltage.
2. Steam generator not filled. See Symptom - Steam generator not filling
or is slow to fill.
3. Power switch (1S) malfunction.
4. Steam generator high limit (2TAS) open.
5. Heat exchanger high limit (3TAS) open.
6. WLC-LLCO normally open contacts not closed. Water level control
(WLC) malfunction.
7. Control board drain relay (K3) malfunction.
8. Limiting (1CON) contactor malfunction.
9. Pressure switch (1PAS) not adjusted properly or malfunction.
10. Regulating contactor 1 (2CON) malfunction.
11. Relay (K1) malfunction.
12. Regulating contactor 2 (3CON) malfunction.
13. Heating element(s) inoperative.
14. Water too pure for probes to properly conduct electricity.
1. Water supply off, supply pressure incorrect or filtering system clogged.
2. Water level control not receiving power. Control board drain relay (K3)
malfunction.
3. WLC-LLCO normally closed contacts are open (no power to fast fill/flush
solenoid 3SOL). Water level control (WLC) malfunction.
4. Fast fill/flush solenoid (3SOL) clogged or malfunction.
5. WLC-HL normally open contacts are not closing (no power to slow fill
solenoid 4SOL). Water level control (WLC) malfunction.
6. Slow fill solenoid (4SOL) clogged or malfunction.
7. Drain valve (motorized) stuck open.
8. Pressure switch (2PAS) malfunction (not closed).
9. Vacuum relief solenoid (5SOL) opening is clogged (not allowing steam
generator to vent).
10. Lime scale build-up on water level probes (shorted to ground).
11. Water level control (WLC) malfunction.
1. Worn or damaged door gasket.
2. Drain line obstructed or not to an open gap drain.
3. Drain line exceeds recommended 6 feet total length.
4. Condensate water pressure set to high.
1. Steamer not level.
2. Drain line obstructed or not to an open gap drain.
3. Worn or gasket. Door gasket damaged.
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