Part # 3052000 (09/16/09)Page 32
Oven (Standard & Convection)
PROBLEM POSSIBLE CAUSE SOLUTION
Oven too hot or not hot enough Thermostat out of calibration Check Calibration
Burner ame too large Incorrect setting pressure or injector Check setting pressure and injector
Burner ame soft-yellow tip Insucient primary air Check aeration shutter setting
Flame lifts o burner ports Excessive primary air Check aeration shutter setting
Flame lights back to the injector Excessive primary air Check aeration shutter setting
Burner “pops” when turned o Excessive primary air Check aeration shutter setting
Delayed ignition Pilot ame too small Check pilot ame length
Burner ports blocked Clean burner
Incorrect aeration Check aeration shutter setting
Incorrect setting pressure Check setting pressure
Pilot burner will not ignite Pilot orice blocked Clean jet
Pilot adjusting screw closed Open and adjust ame
Pilot keeps going out Pilot ame too small Check pilot ame length
Loose thermocouple connection Tighten connection
Faulty thermocouple Replace thermocouple
Faulty gas/safety valve Replace valve
Low millivolt output on open circuit tests Pilot ame too small Adjust pilot ame length
Defective thermocouple Replace thermocouple
Millivolt output high in open circuit test
but low in closed circuit
Faulty gas/safety valve Replace valve
Millivolt output high on closed circuit
test but ame safety tap will not stay
open
Faulty gas/safety valve Replace valve
Door will not stay closed Insucient tension on springs Adjust tension
Broken spring Replace spring
Broken hinge link Replace
Door will not stay open Too much tension on springs Adjust tension
Door not closing on one side Door warped Replace door
Door not level or low in centre Trunion support loose Level and tighten
Trunion support worn Replace
Oven (Standard Only)
Burner ame shuts o when oven is at
the required temperature
Thermostat has incorrect by-pass rate Adjust by-pass or replace them
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