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W415-0153 / A / 10.29.01
Pilot burning; no gas
to main burner; gas
knob is on 'HI'; wall
switch / thermostat is
on.
Main burner orifice is plugged.
Faulty thermopile.
Faulty themostat or switch.
- remove stoppage in orifice.
- replace.
Faulty valve.
- replace.
PILOT
THERMOPILE
BURNER
ELECTRODE
THERMO-
COUPLE
Pilot will not light.
PROBLEM TEST SOLUTIONSYMPTOM
- check if pilot can be lit by a match
- check that the wire is connected to the push button ignitor.
- check if the push button ignitor needs tightening.
- replace the wire if the wire insulation is broken or frayed.
-
replace the electrode if the ceramic insulator is cracked or broken.
- replace the push button ignitor.
No spark at pilot burner
Spark gap is incorrect
- spark gap should be 0.150" to 0.175" (5/32" to 11/64" approx.)
from the electrode tip and the pilot burner. To ensure proper
electrode location, tighten securing nut (finger tight plus 1/4
turn).
TROUBLE SHOOTING GUIDE
- check that the manual valve is turned on.
- check the pilot orifice for blockage.
- replace the valve.
- call the gas distributor.
No gas at the pilot burner
- fill the tank.
Out of propane gas.
BEFORE ATTEMPTING TO TROUBLESHOOT, PURGE YOUR UNIT AND INITIALLY LIGHT THE PILOT AND THE MAIN BURNER WITH THE GLASS DOOR REMOVED.
Gas piping is undersized.
Pilot goes out while
standing; Main burner
is in 'OFF' position.
- turn on all gas appliances and see if pilot flame flutters,
diminishes or extinguishes, especially when main burner ig-
nites. Monitor supply pressure.
- check if supply piping size is to code. Correct all undersized
piping.
- connect a jumper wire across the wall switch terminals; if
main burner lights, replace thermostat.
- disconnect the switch wires & connect a jumper wire across
terminals 1 & 3; if the main burner lights, check the wires for
defects and / or replace wires.
MODEL GS28 ONLY:
Venting is spilling
- test with spill switch bypassed. Replace if defective.
- check for vent blockage.
Pilot flame is not large enough
- turn up the pilot flame.
Pilot flame is not engulfing the
thermocouple.
- turn up pilot flame.
- replace pilot assembly.
Thermocouple shorting.
Faultly thermocouple.
Faulty valve.
System is not correctly purged.
- purge the gas line with the glass door open.
- fill the tank.
Out of propane gas
Pilot goes out when
the gas knob is re-
leased.
- loosen and tighten thermocouple.
- clean thermocouple and valve connection.
- replace thermocouple.
- replace valve.
- replace.
- replace.
Main burner goes out;
pilot stays on.
Pilot flame is not large enough
or not engulfing the thermo-
pile.
Thermopile shorting
Remote wall switch wire is too
long, too much resistance in
the system
- turn up pilot flame.
- replace pilot assembly.
- clean thermopile and thermopile connection to valve.
- shorten wire to correct length or wire gauge.
Faulty thermostat or switch - replace