Vulcan-Hart VC5E Service Manual page 31

VC5ED FULL SIZE ELECTRIC CONVECTION OVEN - TROUBLESHOOTING
SYMPTOMS
Uneven Cooking.
Intermittent operation problems.
Oven will not turn on.
No heat, convection fan motor runs.
No power to temperature control.
Door does not seal or shut properly
Wrong temperature on display.
1. Fan cover not properly seated on hooks.
2. Convection Fan motor speed/direction.
3. Air flow baffles (Flag, Cavity or Vertical) missing or
damaged.
4. Line voltage incorrect.
5. High limit thermostat malfunction.
6. Contactor malfunction.
7. Heating element(s) malfunction.
8. Doors out of adjustment.
9. Door roller out of adjustment or broken.
10. Door seals damaged.
1. Cooling fan malfunction.
2. Wiring connections loose.
3. High ambient temperatures.
1. Line voltage incorrect.
2. Control circuit fuses OPEN.
3. Power switch (S1) inoperative.
4. Transformer inoperative (480V only).
1. High limit thermostat OPEN.
2. Temperature probe malfunction.
3. Heating element malfunction.
4. Contactor malfunction.
5. Temperature control malfunction.
1. Power switch (S1) in "Cool Down".
2. Door switch malfunction.
1. Doors out of adjustment.
2. Door catch roller out of adjustment or broken
(independent doors).
3. Door seals damaged.
1. Temp board diagnostic buttons are stuck down.
Loosen two bottom screws attaching temp board to
control panel.
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POSSIBLE CAUSES
F45652 (0217)