Troubleshooting The Gas Control System - Kingsman IDV26 Installation Instructions Manual

BEFORE DOING ANY GAS CONTROL SERVICE WORK, REMOVE THE GLASS FRONT. Before troubleshooting the
gas control system, be sure external gas shut off is in the "On" position.
Problem
Spark igniter will not light. Defective or misaligned
electrode at pilot.
Defective igniter (push-
button).
Pilot will not stay lit after Defective thermocouple
carefully following lighting (flame switch where
instructions. applicable).
Defective valve magnet.
Pilot burning, no gas to Wall switch or wires
burner, valve knob "ON", defective.
and wall switch "ON".
Generator may not be
generating sufficient voltage.
Plugged burner orifice.
Defective automatic valve
operator.
Frequent pilot outage Pilot flame may be too low or
problem. blowing (high) causing the
pilot safety to drop out.
Flame lifts off burner and The inner liner has come off
goes out in less than 30 flue or termination, flame is
seconds. starving for oxygen.
Flame lifts off burner on Improper installation of
one side while the rest of firebrick. Firebrick is likely
the flame remains lit. leaning.

Troubleshooting the Gas Control System

Possible Causes
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 electrode and pilot should be 1/8" to
1/4" to have a strong spark.
Check pilot flame. Must impinge on generator and thermocouple. Clean
and/or adjust pilot for maximum flame impingement 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 connections are bad.
Check generator with millivolt meter. Take reading at generator 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 specified 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 impingement on generator
and thermocouple.
Attach the inner liner to flue or termination using screws, silicone and clamps
as stated in manual.
Be sure to position firebrick against firebox walls and be sure to use brick clips
attached to the inner side of firebox.
WARNING
Corrective Action
81