Part # 4519069 (07/24/09) Page 29
TROUBLE SHOOTING GUIDE
Open Type Hot Plate, Solid Hot Top, Griddles And Broilers
PROBLEM POSSIBLE CAUSE SOLUTION
Burner ame too large. Incorrect setting pressure or injector. Check the 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 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 length of pilot ame.
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 length.
No spark to pilots. Disconnected or loose hi-tension wires. Reconnect hi-tension wires.
Defective spark module. Replace module.
Defective momentary switch. Replace switch.
No power to range. Check and restore power supply.
Pilot keeps going out. Pilot ame too small. Check pilot ame length.
Loose thermocouple connection. Tighten connection.
Faulty thermocouple. Replace thermocouple.
Faulty ame safety device. Replace ame safety device.
Low millivolt output on open circuit
tests.
Pilot ame too small. Adjust pilot ame length.
Defective thermocouple. Replace thermocouple.
Low millivolt output high in open
circuit test, but low in closed circuit test.
Faulty ame safety device. Replace ame safety tap.
Millivolt output high on closed circuit
test, but blame safety tap will not stay
open.
Faulty ame safety device. Replace ame safety tap.
Standard And Convection Ovens
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 the 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.
Burner ‘pops’ when turned o. Excessive primary air. Check aeration shutter setting.
Delayed ignition. Pilot ame too small. Check length of pilot ame.
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 length.
No spark to pilots. Disconnected or loose hi-tension wires. Reconnect hi-tension wires.
Defective spark module. Replace module.
Defective momentary switch. Replace switch.
No power to range. Check and restore power supply.
Pilot keeps going out. Pilot ame too small. Check pilot ame length.
Loose thermocouple connection. Tighten connection.
Faulty thermocouple. Replace thermocouple.
Faulty ame safety device. Replace ame safety device.