35
W415-0210 / R / 02.27.08
Main burner goes
out; pilot stays on.
Pilot fl ame is not large enough
or not engulfi ng the thermo-
pile
- turn up pilot fl ame.
- replace pilot assembly.
Thermopile shorting
- clean thermopile connection to the valve. Reconnect.
- replace thermopile / valve.
Remote wall switch wire is too
long; too much resistance in
the system.
- shorten wire to correct length or wire gauge.
Faulty thermostat or switch.
- replace.
Main burner goes
out; pilot goes out.
Refer to "MAIN BURNER GOES OUT; PILOT STAYS ON"
Vent is blocked
Vent is re-circulating
- check for vent blockage.
- check joint seals and installation.
4" fl exible vent has become
disconnected from fi replace.
- re-attach to fi replace.
- 7"ø cap was not replaced
Pilot will not light.
- check if pilot can be lit by a match
- check that the wire is connected to the push button igniter.
- check if the push button igniter 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 igniter.
No spark at pilot burner
- fi ll the tank.
Out of propane gas
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 loca-
tion, tighten securing nut (fi nger tight plus 1/4 turn).
No gas at the pilot burner
- check that the manual valve is turned on.
- check the pilot orifi ce for blockage.
- replace the valve.
- call the gas distributor.
Pilot goes out when
the gas knob is re-
leased.
The gas valve has
an interlock device
which will not al-
low the pilot burn-
er to be lit until
the thermocouple
has cooled. Allow
approximately 60
seconds for the
thermocouple to
cool.
S y s t e m i s n o t c o r r e c t l y
purged.
- purge the gas line.
Out of propane gas.
- fi ll the tank.
P i l o t f l a m e i s n o t l a r g e
enough
- turn up the pilot fl ame.
- gently twist the pilot head to improve the fl ame pattern around the
thermocouple.
Pilot fl ame is not engulfi ng the
thermocouple.
Thermocouple shorting /
faulty.
- loosen and tighten thermocouple.
- clean thermocouple and valve connection.
- replace thermocouple.
- replace valve.
Faulty valve.
- replace.
Pilot burning; no
gas to main burner;
gas knob is on 'HI';
wall switch / ther-
mostat is on.
Themostat or switch is de-
fective.
- connect a jumper wire across the wall switch terminals; if main burner
lights, replace switch / thermostat.
M a i n b u r n e r o r i f i c e i s - remove stoppage in orifi ce.
Faulty valve.
- replace.
Wall switch wiring is defec-
tive.
- 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.
TROUBLE SHOOTING GUIDE
B
EFORE
ATTEMPTING
TO
TROUBLESHOOT
,
PURGE
YOUR
UNIT
AND
INITIALLY
LIGHT
THE
PILOT
AND
THE
MAIN
BURNER
WITH
THE
GLASS
DOOR
OPEN
.
SYMPTOM
PROBLEM
TEST SOLUTION
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http://www.northlineexpress.com
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