Filter
Top Products
FULL SIZE ELECTRIC CONVECTION OVENS - TROUBLESHOOTING
F25105 (December 2001) Page 56 of 60
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.
ALL MODELS
SYMPTOMS POSSIBLE CAUSES
Blower motor doesn’t run with power switch in “ON”
“COOL DOWN” or position.
1. Line voltage incorrect.
2. Power switch (S1) malfunction.
3. Fan speed switch (S3) malfunction.
4. Interconnecting wiring malfunction.
5. Motor inoperative.
Blower motor doesn’t run with power switch “ON”, but
oven heats.
1. Door switch malfunction.
2. Interconnecting wiring malfunction.
3. Motor inoperative.
Blower motor doesn’t run in “Cool Down”, but runs ok
in “ON” position.
1. Power switch (S1) malfunction.
2. Fan speed switch (S3) malfunction.
3. Interconnecting wiring malfunction.
Excessive or low heat in oven. 1. Line voltage incorrect.
2. Heating element malfunction.
3. Contactor malfunction.
4. Convection Fan motor malfunction.
5. Temperature probe malfunction or mechanical
thermostat malfunction.
6. Temperature control not calibrated.
7. Temperature control malfunction.
Mechanical Timer inoperative or not functioning
properly.
1. Interconnecting wiring malfunction.
2. Line voltage incorrect.
3. Timer malfunction.
Component cooling Fan does not run. 1. Motor inoperable.
2. Interconnecting wiring malfunction.
Uneven Cooking. 1. Convection Fan motor speed/direction.
2. Air flow Baffles missing or damaged.
3. Line voltage incorrect.
4. Heating element(s) malfunction.
5. Contactor malfunction.
Intermittent operation problems. 1. High ambient temperatures.
2. Wiring connections loose.
3. Cooling fan malfunction.