Trouble Shooting The Gas Control System
NOTE: Before troubleshooting the gas control system, be sure external gas shut off is in the “On” position.
Problem
Possible Causes
Corrective Action
Spark igniter will not light.
Defective or misaligned
Check for spark at electrode and pilot: if no spark and
electrode at pilot.
electrode wire is properly connected, replace igniter.
Defective igniter
Using a match, light pilot. If pilot lights, turn off pilot and
(push-button)
push the red button again. If pilot will not light - check gap
at electrode and pilot should be 1/8” to 1/4” to have a
strong spark.
Pilot will not stay lit after
Defective thermocouple
Check pilot flame. Must impinge on generator and thermo
carefully following lighting
(flame switch where
couple. Clean and/or adjust pilot for maximum flame
instructions.
applicable)
impingement on generator and thermocouple. Replace
thermocouple if pilot will not hold. (Hand tight 1/8 turn on
replacement)
Defective valve magnet.
Replace valve, if pilot won’t hold after the thermocouple is
replaced.
Pilot burning, no gas to burner, Wall switch or wires
Check wall switch and wires for proper connections.
Valve knob “ON”, Wall
defective
Jumper wire across terminals at wall switch. If burner
Switch “ON”
comes on, replace defective wall switch. If okay, jumper
wires, across wall switch wires at valve. If burner comes
on, wires are faulty or connections are bad.
Generator may not be
Check generator with millivolt meter. Take reading at gen
generating sufficient voltage. erator terminals of gas valve. Should read 325 millivolts
minimum while holding valve knob depressed in pilot posi
tion and wall switch “off”. Replace faulty generator if read
ing is below specified minimum.
Plugged burner orifice.
Check burner orifice for stoppage and remove.
Defective automatic valve
Remove wall switch wires from gas valve. Install jumper
operator.
wires from top bottom terminals of gas valve. Turn valve on
“ON”. If main burner does not light, replace valve.
Frequent Pilot outage problem. Pilot flame may be too low or Clean and/or adjust pilot flame for maximum flame
blowing (high) causing
impingement on generator and thermocouple.
the pilot safety to drop out.
Flame lifts off burner and goes Inner 4” liner has come off
Attach 4” liner to flue or termination using screws, silicone
out in less than 30 seconds
flue or termination, flame is
and clamps as stated in manual.
starving for oxygen
Flame lifts off burner on
Improper installation of
Be sure to position firebrick against firebox walls and be
one side while the rest of
firebrick. Firebrick is likely
sure to use brick clips attached to the inner side of firebox.
the flame remains lit.
leaning.
WARNING:
BEFORE DOING ANY GAS CONTROL SERVICE WORK, REMOVE THE GLASS FRONT.
36
