Vulcan - Vulcan-Hart VSX24G Service Manual

VSX BOILER BASE SERIES CONVECTION STEAMERS - TROUBLESHOOTING
SYMPTOM
Steam output low or slow cooking.
Unit leaks water.
Boiler water level too high.
Boiler does not fill.
Timer motor does not run.
Door not closing properly.
Door won't open.
Buzzer not operating.
F24627 (0916)
POSSIBLE CAUSES
Problem with auto blowdown timer (older models).
Power switch malfunction.
Pressure reducing valve malfunction or needs cleaned
(direct or regenerated units only).
Low or no steam supply to unit (direct or regenerated
units only).
Steam trap malfunction.
Blocked steam injector ports. (Open door, press door
switch button and verify good steam flow into
compartment.)
Steam solenoid valve not fully opening or blocked.
Steam intake shut-off valve closed or out of adjustment.
See INTAKE SHUT-OFF VALVE ADJUSTMENT.
Cycling pressure switch malfunction or needs
adjustment.
Steam header line (supply) blockage.
Heavy amount of condensate in the pressure controls
steam supply line.
Pressure relief valve leaking.
Steam supply lines leaking badly.
Steam trap malfunction.
Loose water, steam or drain line connections (top or
base).
Boiler hand hole gasket not sealing.
Leak at gauge glass.
Fill solenoid does not shut off.
High level probe dirty (open circuit).
Water level control malfunction.
Water supply not on.
Fill solenoid not opening or plugged.
Water level control malfunction.
Door open or door switch inoperative.
Timer not getting power.
Timer motor inoperative.
Door latch assembly malfunction or out of adjustment.
See DOOR ASSEMBLY.
Striker adjustment. See DOOR ASSEMBLY.
Latch won't release. See DOOR ASSEMBLY.
Timer malfunction.
Buzzer malfunction.
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