Gas Models Only - Vulcan-Hart VSX3E Service Manual

SYMPTOM
Burner won't light.
Burner won't stay lit.
HSI heats up but gas will not light.
Form 24618 (Rev. A, March 2000)
VSX SERIES STEAMER - TROUBLESHOOTING

GAS MODELS ONLY

1. Gas not "on".
2. Low incoming gas pressure.
3. HSI not operating see "HOT SURFACE IGNITOR" in
"SERVICE PROCEDURES AND ADJUSTMENTS".
4. Unit not properly grounded and/or polarity of incoming power
is incorrect.
5. Ignition module not receiving power. Check 2T for 24VAC
output to module.
6. Ignition module malfunctioning.
1. Gas pressure low see "GAS PRESSURE ADJUSTMENT" in
"SERVICE PROCEDURES AND ADJUSTMENTS".
2. Check position of flame sense probe see "FLAME SENSE
PROBE" in SERVICE PROCEDURES AND
ADJUSTMENTS".
3. Flame sense probe malfunction.
4. Ignition module malfunction.
5. Check gas orifice for obstruction.
1. Gas supply is off.
2. Gas valve (solenoid) malfunction.
3. Ignition module not receiving power. Check 2T for 24VAC
output to module.
4. Ignition module malfunction.
POSSIBLE CAUSES
Printed in U.S.A.