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Cabinet Heater Troubleshooting

7/10/2014 9:44 PM

For information on how to troubleshoot your Cabinet heater, download the troubleshooting guide.

PROBLEM POSSIBLE CAUSE SOLUTION
Piezo igniter does not produce spark 1 Spark electrode positioned wrong Adjust spark gap and/or replace pilot assembly
2 Igniter cable not connected to spark electrode Connect cable to spark electrode
3 Spark electrode broken Replace pilot assembly
4 Piezo igniter defective Replace control valve
Piezo igniter produces spark at the electrode, but no pilot flame 1 Gas supply turned off Check that gas is connected properly and  valve opened slowly and all the way on propane cylinder
2 Control knob not depressed while in PILOT position Depress control knob while in PILOT and hold for 30 seconds to get propane flow before trying to ignite
3 Pilot tube is blocked Clean pilot tube using q-tip with alcohol
Put in 2" to bottom of pilot tube & twist around clear out by blowing air max. 30 psi
4 Control knob is stripped Remove knob and verify that the  flat that mates to control valve stem is not stripped; If stripped, replace knob
5 Regulator defective Replace regulator
Pilot lights but flame goes out gradually when control knob is released 1 Control knob not depressed long enough After pilot is lit, keep control knob depressed for 30-60 seconds
2 Pilot flame not touching thermocouple Clean pilot tube using q-tip with alcohol
Put in 2" to bottom of pilot tube & twist around clear out by blowing air max. 30 psi
3 Thermocouple connection loose at control valve Hand tight until snug, then 1/4 turn with wrench
4 Inlet gas pressure too low Check/replace gas cylinder
5 Defective regulator Replace regulator
Pilot lights but flame goes out immediately when control knob is released 1 Control knob not depressed long enough After pilot is lit, keep control knob depressed for 30-60 seconds
2 Pilot flame not touching thermocouple Clean pilot tube using q-tip with alcohol
Put in 2" to bottom of pilot tube & twist around clear out by blowing air max. 30 psi
3 Thermocouple connection loose at control valve Hand tight until snug, then 1/4 turn with wrench
4 Tip switch connections broken or disconnected Clean electrical contacts at control valve
Reconnect tip switch wires
5 Control knob is stripped Remove knob and verify flat that mates to control valve stem is not stripped
If stripped, replace knob
6 Defective thermocouple Replace pilot assembly
7 Defective tip switch Replace tip switch
8 Defective control valve Replace control valve
Burner does not light after pilot is lit 1 Main burner orifice is blocked/clogged Remove back cover & lower baffle to expose burner assembly then clean main burner orifice with clean cloth or q-tip with alcohol
2 Venturi tube is blocked Remove sheetmetal back cover to expose lower baffle to expose burner assembly
Blow out tube running up back of burners
3 Inlet gas pressure is too low Check/replace gas cylinder
4 Control knob set between HI & LOW positions Turn control knob until it is at desired setting
5 Control knob is stripped Remove knob and verify 2 flats that mate to control valve stem are not stripped; If stripped, replace knob
6 Defective ceramic plate Replace ceramic burner
7 Defective regulator Replace regulator
Heater shuts off during operation 1 Not enough fresh air available Provide ventilation per owner's manual
2 Inlet gas pressure is too low Check/replace gas cylinder
3 Pilot tube has become blocked/clogged Clean pilot tube using q-tip with alcohol
Put in 2" to bottom of pilot tube & twist around clear out by blowing air max. 30 psi
4 Tip switch has been activated due to bumping or moving Level heater and re-light
Posted in Product FAQs By

Melissa Sawmiller