21
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 SOLUTION
SYMPTOM
- 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.
B
EFORE
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
Summary of Contents for Haliburton GDS28N
Page 24: ...24 W415 0153 A 10 29 01 NOTES...
