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VL BOILER BASE SERIES CONVECTION STEAMERS - TROUBLESHOOTING
SYMPTOM
Compartment leaks water around door.
Cold water condenser not operating
properly.
Steam leaks around door.
Steam generated inside compartment
when timer or compartment power switch is
OFF.
Heat coming on without water in boiler (dry
firing).
Pressure relief valve opening or leaking.
TROUBLESHOOTING
ALL MODELS
1.
Drain screen clogged.
2.
Drain line obstructed or not to an open gap drain.
3.
Steamer not level.
4.
Excessive cooking compartment pressures.
A.
On models equipped with the compartment pressure
regulating valve, verify the compartment pressure is 6 psi
during cooking. If pressure is higher then adjust the pressure
regulating valve and recheck. See COMPARTMENT
PRESSURE ADJUSTMENT.
B.
On models without the compartment pressure regulating
valve, verify the compartment pressure is 6 psi during
cooking. If pressure is higher then adjust the cycling pressure
switch and recheck. See CYCLING AND HIGH LIMIT
PRESSURE SWITCHES (GAS AND ELECTRIC MODELS).
1.
Water supply not on.
2.
Plugged spray nozzle.
3.
Cold water condenser solenoid inoperative or plugged.
4.
Cold water condenser thermostat malfunction or needs
adjustment.
5.
No power to cold water condenser solenoid.
1.
Compartment door not properly sealed.
2.
Worn or damaged gasket.
3.
Drain line obstructed or not to an open drain.
1.
Steam gate valve not fully closing (clogged, dirty or
malfunctioning). See STEAM GATE VALVE(S).
1.
Lime scale (moist) on LLCO water level probe or probe damaged
(shorted to ground).
2.
Retention of water in probe canister assembly.
3.
Water level control malfunction.
1.
Pressure relief valve malfunction.
2.
Cycling pressure switch set to high. See CYCLING AND HIGH
LIMIT PRESSURE SWITCHES (GAS AND ELECTRIC
MODELS).
Page 89 of 93
POSSIBLE CAUSES
F24650 Rev. A (1017)
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