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29
W415-0583 / B / 05.23.07
Remote wall switch is
in “OFF” position; main
burner comes on when
gas knob is turned to
“ON” position.
Wall switch is mounted upside
down
- reverse.
Faulty valve.
- replace.
- replace.Remote wall switch is ground-
ing.
- check for ground (short); repair ground or replace wire.
Remote wall switch wire is
grounding.
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 dis-
connected from fi replace.
- re-attach to fi replace.
Main burner goes out;
pilot stays on.
Pilot fl ame is not large enough or
not engulfi ng the thermopile
- 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.
Pilot will not light.
- check if pilot can be lit by a match
- replace the wire if the wire insulation is broken or frayed.
- replace the electrode if the ceramic insulator is cracked or broken.
- check & replace the battery
- check to make sure the electrode is connected to the ignitor box
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 location, 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 while
standing; Main
burner is in ‘OFF’
position.
Gas piping is undersized. - 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.
Pilot burning; no gas
to main burner; gas
knob is on ‘HI’; wall
switch / thermostat
is on.
Themostat or switch is defec-
tive.
- connect a jumper wire across the wall switch terminals; if main burner lights,
replace switch / thermostat.
Wall switch wiring is defective.
- disconnect switch wires &connect a jumper wire across terminals 1 & 3; if the
main burner lights, check the wires for defects and / or replace wires.
Main burner orifi ce is plugged. - remove stoppage in orifi ce.
Faulty valve.
- replace.
SYMPTOM PROBLEM TEST SOLUTION
PILOT
BURNER
THERMOCOUPLE
THERMOPILE
Flames are consis-
tently too large or too
small. Carboning oc-
curs.
Unit is over-fi red or under-fi red. - check pressure readings:
Inlet pressure can be checked by turning screw (A) counter-clock-wise 2 or 3
turns and then placing pressure gauge tubing over the test point. Gauge should
read 7” (minimum 4.5”) water column for natural gas or 13” (11” minimum) water
column for propane. Check that main burner is operating on “HI”.
Outlet pressure can be checked the same as above using screw (B). Gauge
should read 3.5” water column for natural gas or 10” water column for propane.
Check that main burner is operating on “HI”.
AFTER TAKING PRESSURE READINGS, BE SURE TO TURN SCREWS
CLOCKWISE FIRMLY TO RESEAL. DO NOT OVERTORQUE.
Leak test with a soap and water solution.
PILOT
B
T
O
P
I
L
L
O
F
L
I
H
O
O
P
F
A