16
WS-415-63 / 11.24.98
TROUBLE SHOOTING GUIDE
B
EFORE
ATTEMPTING
TO
TROUBLESHOOT
,
PURGE
YOUR
UNIT
AND
INITIALLY
LIGHT
THE
PILOT
AND
THE
MAIN
BURNER
WITH
THE
GLASS
DOOR
REMOVED
.
PROBLEM
PROBLEM
PROBLEM
PROBLEM
PROBLEM
TEST SOLUTION
TEST SOLUTION
TEST SOLUTION
TEST SOLUTION
TEST SOLUTION
SYMPTOM
SYMPTOM
SYMPTOM
SYMPTOM
SYMPTOM
PILOT
THERMOPILE
BURNER
ELECTRODE
THERMO-
COUPLE
Pilot will not light.
- 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
- 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
- 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).
- fill the tank.
Out of propane gas.
The gas valve has an
interlock device
which will not allow
the pilot burner to be
lit until the thermo-
couple has cooled.
Allow approximately
60 seconds for the
thermocouple to
cool.
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.
- loosen and tighten thermocouple.
- clean thermocouple and valve connection.
- replace thermocouple.
- replace valve.
Faultly thermocouple.
- replace.
Faulty valve.
- replace.
System is not correctly purged.
- purge the gas line.
- fill the tank.
Out of propane gas
Pilot goes out when
the gas knob is re-
leased.
Pilot burning; no gas
to main burner; gas
knob is on 'HI'; wall
switch / thermostat is
on.
Main burner orifice is plugged.
- remove stoppage in orifice.
Faulty thermopile.
Faulty themostat or switch.
- ensure proper connection.
- replace.
Faulty valve.
- replace.
- 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.
Gas piping is undersized.
Pilot goes out while
standing; Main burner
is in 'OFF' position.
Main burner goes out;
pilot stays on.
- turn up pilot flame.
- replace pilot assembly.
- clean thermopile and thermopile connection to valve.
- shorten wire to correct length or wire gauge.
Pilot flame is not large enough
or not engulfing the thermopile.
Thermopile shorting
Remote wall switch wire is too
long, too much resistance in the
system
Faulty thermostat or switch
- replace
