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SERVICE
OPERATIONAL DIFFICULTIES & PROBABLE CAUSES
OVEN PILOT BURNER GOES OUT:
1. Gas shut off.
2. Poor draft in flue snuffs out flame.
3. Too much draft pulls flame away from thermocouple.
4. Pilot flame too low.
5. Thermocouple defective.
6. Thermocouple connection on safety pilot valve loose.
7. Pilot orifice dirty.
8. Safety pilot valve defective.
9. Gas leak at pilot orifice fitting.
10. Restricted or plugged vent on gas pressure regulator.
11. Incorrect gas pressure setting on pressure regulator.
12. Make up air in kitchen blowing at flue outlet.
OVEN BURNER FAILS TO COME ON (PILOT ON):
1. Burner valve off.
2. Burner orifice plugged.
3. Thermostat out of calibration.
4. Minimum flame adjustment closed and thermostat setting too low.
OVEN TEMPERATURE HIGHER THAN DIAL SETTING:
1. Oven thermostat out of calibration.
2. Minimum flame too high (do not lower under 1/8‖).
3. Broken capillary tube on thermostat.
4. Dirt under thermostat valve.
