Table of Contents
Advertisement
WARNING: BEFORE DOING ANY GAS CONTROL SERVICE WORK, REMOVE THE GLASS FRONT.
NOTE: Before troubleshooting the gas control system, be sure external gas shut off is in the "On" position.
Problem
Spark igniter will not light.
Pilot will not stay lit after
carefully following lighting
instructions.
Pilot burning, no gas to burner,
Valve knob "ON", Wall
Switch "ON"
Frequent Pilot outage problem.
Flame lifts off burner and goes
out in less than 30 seconds
Flame lifts off burner on
one side while the rest of
the flame remains lit.
Trouble Shooting The Gas Control System
Trouble Shooting The Gas Control System
Possible Causes
Defective or misaligned
electrode at pilot.
Defective igniter
(push-button)
Defective thermocouple
(flame switch where applicable) couple. Clean and/or adjust pilot for maximum flame impinge-
Defective valve magnet.
Wall switch or wires
defective
.
Generator may not be generating Check generator with millivolt meter. Take reading at generator
sufficient voltage.
Plugged burner orifice.
Defective automatic valve
operator.
Pilot flame may be too low or
blowing (high) causing the pilot ment on generator and thermocouple.
safety to drop out.
Inner 4" liner has come off flue
or termination, flame is starving clamps as stated in manual.
for oxygen
Improper installation of
firebrick. Firebrick is likely
leaning.
Corrective Action
Check for spark at electrode and pilot: if no spark and electrode
wire is properly connected, replace igniter.
Using a match, light pilot. If pilot lights, turn off pilot and push
the red button again. If pilot will not light - check gap at elec-
trode and pilot should be 1/8" to 1/4" to have a strong spark.
Check pilot flame. Must impinge on generator and thermo-
ment on generator and thermocouple. Replace thermocouple if
pilot will not hold. (Hand tight 1/8 turn on replacement)
Replace valve, if pilot won't hold after the thermocouple is
replaced.
Check wall switch and wires for proper connections. Jumper
wire across terminals at wall switch. If burner comes on, replace
defective wall switch. If okay, jumper wires, across wall switch
wires at valve. If burner comes on, wires are faulty or connec-
tions are bad.
terminals of gas valve. Should read 325 millivolts minimum
while holding valve knob depressed in pilot position and wall
switch "off". Replace faulty generator if reading is below speci-
fied minimum.
Check burner orifice for stoppage and remove.
Remove wall switch wires from gas valve. Install jumper wires
from top bottom terminals of gas valve. Turn valve on "ON".
If main burner does not light, replace valve.
Clean and/or adjust pilot flame for maximum flame impinge
Attach 4" liner to flue or termination using screws, silicone and
Be sure to position firebrick against firebox walls and be sure to
use brick clips attached to the inner side of firebox.
24
Advertisement
Table of Contents
