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symptom
Pilot will not light.
No spark at pilot burner.
PILOT
INSERT
BURNER
THERMOPILE
THERMOCOUPLE
PHOTO
Out of propane gas.
OF PILOT
Spark gap is incorrect.
HERE
No gas at the pilot burner.
Pilot goes out when the
System is not correctly purged
gas knob is released.
Out of propane gas.
The gas valve
has an interlock
Pilot fl ame is not large enough.
device which will
Pilot fl ame is not engulfi ng the
not allow the pilot
thermocouple
burner to be lit until
the thermocouple
Thermocouple shorting / faulty.
has cooled. Allow
approximately 60
seconds for the
thermocouple to cool.
Faulty valve.
Pilot burning; no gas to
Thermostat or switch is defective
main burner; gas knob
is on 'HI'; wall switch /
Wall switch wiring is defective.
thermostat is on.
Main burner orifi ce is plugged.
Faulty valve.
Pilot goes out while
Gas piping is undersized.
standing; Main burner
is in 'OFF' position.
Flames are very
Door is ajar.
aggressive.
Venting action is too
great.
Remote wall switch is
Wall switch is mounted upside down.
in 'OFF' position; main
Remote wall switch is grounding.
burner comes on when
gas knob is turned to
Remote wall switch wire is grounding.
'ON' position.
Faulty valve.
problem
-
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
-
Fill the tank.
-
Spark gap should be 0.150" (3.8mm) to 0.175" (4.5mm) from the electrode tip
and the pilot burner. To ensure proper electrode location, tighten securing nut
(fi nger tight plus 1/4 turn).
-
Check that the manual valve is turned on.
-
Check the pilot orifi ce for blockage.
-
Replace the valve.
-
Call the gas distributor.
-
Purge the gas line.
-
Fill the tank.
-
Turn up the pilot fl ame.
-
Gently twist the pilot head to improve the fl ame pattern around the
thermocouple.
-
Loosen and tighten thermocouple.
-
Clean thermocouple and valve connection.
-
Replace thermocouple.
-
Replace valve.
-
Replace.
-
Connect a jumper wire across the wall switch terminals; if main burner lights,
replace switch / 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.
-
Remove stoppage in orifi ce.
-
Replace.
-
Turn on all gas appliances and see if pilot fl ame fl utters, diminishes or
extinguishes, especially when main burner ignites. Monitor appliance supply
working pressure.
-
Check if supply piping size is to code. Correct all undersized piping.
-
Ensure the mechanical means of securing the door is providing a tight seal.
-
Check to ensure venting is properly sealed.
-
If restriction is required see "restricting vertical vents" section.
-
Reverse.
-
Replace.
-
Check for ground (short); repair ground or replace wire.
-
Replace.
troubleshooting (millivolt)
test solution
27.2_2
EN
71
W415-2882 / A / 12.10.20
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