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VPX SERIES STEAMER - TROUBLESHOOTING
F25111 (March 2002)
Page 19 of 20
TROUBLESHOOTING
WARNING:
CERTAIN PROCEDURES IN THIS SECTION REQUIRE ELECTRICAL TESTS OR
MEASUREMENTS WHILE POWER IS APPLIED TO THE MACHINE. EXERCISE EXTREME CAUTION AT ALL
TIMES. IF TEST POINTS ARE NOT EASILY ACCESSIBLE, DISCONNECT POWER, ATTACH TEST
EQUIPMENT AND REAPPLY POWER TO TEST.
SYMPTOM POSSIBLE CAUSES
Compartment leaks water around door. 1. Steamer not level.
2. Steamer overfilled.
Steam leaks around door. 1. Worn gasket. See "DOOR" in "SERVICE PROCEDURES
AND ADJUSTMENTS".
2. Damaged gasket.
3. Steam vent pipe blocked.
Steam generated inside compartment
when timer is off.
1. Timer malfunction.
2. Contactor malfunction.
3. Temperature control malfunction (heater light on).
Steamer will not heat (heat light off). 1. Line voltage incorrect.
2. Control circuit fuse(s) open.
3. High limit thermostat open (low water light off).
4. Door open or door switch malfunction.
5. Cooking mode switch off or inoperative.
6. Relay R1 malfunction.
7. Timer malfunction (timed mode only).
8. Temperature probe malfunction.
9. Temperature control malfunction.
Steamer will not heat (heat light on). 1. Line voltage incorrect.
2. Heating element malfunction.
3. Contactor malfunction.
Timer motor does not run. 1. Door open or door switch malfunction.
2. Relay R1 malfunction.
3. Timer inoperative.
Door not closing properly. 1. Door latch assembly.
2. Striker adjustment.
3. Steamer pan not inserted properly.
Door won’t open. 1. Latch won’t release. See "DOOR LATCH ADJUSTMENT" in
"SERVICE PROCEDURES AND ADJUSTMENTS".
Buzzer not operating. 1. Timer malfunction.
2. Buzzer malfunction.
Water spraying out of steam vent pipe
during a "cook" cycle.
1. Temperature control calibration to high. See
"TEMPERATURE CONTROL CALIBRATION -
ADJUSTMENT FOR ELEVATION" in "SERVICE
PROCEDURES AND ADJUSTMENTS".
2. Temperature probe malfunction.
3. Temperature control malfunction.
4. Contactor malfunction.
High water usage. 1. Temperature control calibration to high. See
"TEMPERATURE CONTROL CALIBRATION -
ADJUSTMENT FOR ELEVATION" in "SERVICE
PROCEDURES AND ADJUSTMENTS".
2. Temperature probe malfunction.
3. Temperature control malfunction.
4. Steamer operating in "continuous" mode.
Excessive or inconsistent "cook" times. 1. Door left open between loads.
2. Temperature control calibration to low.
3. Heating element malfunction.
4. Standby thermostat malfunction.