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VL BOILER BASE SERIES CONVECTION STEAMERS - TROUBLESHOOTING
SYMPTOM
Boiler base will not heat or build pressure.
Steam output low or slow cooking.
Boiler leaks water.
Boiler fill solenoid cycling to frequently.
Boiler water level too high.
F24650 Rev. A (1017)
POSSIBLE CAUSES
1.
Check incoming voltage.
2.
Boiler not filled - check fill solenoid for power, clogging or
malfunction.
3.
Water Level Control malfunction. HL-3 relay not energizing or
contacts not closing to power boiler fill solenoid.
4.
Water too "pure" for probes to properly conduct electricity.
5.
Contactor malfunction (electric only).
6.
Heating element inoperative (electric only).
7.
Cycling pressure switch open or set too high. Steamer is cycling
on high limit.
8.
High limit thermostat open.
9.
Problem with auto blowdown timer (older models).
10. Power switch malfunction.
11. Pressure reducing valve malfunction or needs cleaned (direct or
regenerated models only).
12. Low or no steam supply to steamer (direct or regenerated models
only).
1.
Steam gate valve not fully opening or blocked.
2.
Cycling pressure switch malfunction or needs adjustment.
3.
Steam header line (supply) blockage.
4.
Heavy amount of condensate in the pressure controls steam
supply line.
5.
Pressure relief valve leaking.
6.
Steam supply lines leaking.
1.
Loose water, steam or drain line connections (top or base).
2.
Boiler hand hole gasket not sealing.
3.
Leak at gauge glass.
1.
LL probe lime scaled over (dry) or damaged and not sensing
water.
2.
Water level control malfunction.
1.
Fill solenoid does not shut off.
2.
High level probe lime scaled over (dry) or damaged and is not
sensing water (open circuit).
3.
Water level control malfunction. HL-3 relay not de-energizing or
contacts not opening.
Page 90 of 93
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