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4-99 25 21322M
GC150 SERIES DIRECT VENT GAS APPLIANCE
VIII. TROUBLE SHOOTING
ELECTRONIC IGNITION (GC150E)
B. Plugged burner orifice.
C. Wall switch defective.
D. No Power
A. A normal result of gas
combustion.
A. A normal result during
the first 20 minutes of
burning.
B. Improper air mixture.
1. Spark ignitor will
not light burner
after repeated
attempts.
2. Burner will not
stay lit.
3. With valve and
wall switch in
“ON” position,
no gas to burner.
4. Glass doors fog
up.
5. Blue flames.
Problem Cause Corrective Action
Check for loose connections on electrode and ignitor. Refer
to the wiring diagram on page 13 for assistance.
Check for spark. If electrode connection is correct and there
is no spark, replace ignitor.
Spark should be extending approx. 3/16" to ground wire.
See Figure 42. Adjust gap to give proper spark. Remove
hands from electrode before attempting.
Check burner flame. See Figure 41. Adjust ignitor if neces-
sary.
Be sure ignitor is secured tight into bracket and bracket is
secured tightly to the unit.
Be sure wiring connections are tight throughout system,
including high limit switch.
Check that wiring is grounded as shown in Figure 19.
Check all gas valves leading to appliance. Turn to the “ON”
position. Check for 24 volt power off secondary on the trans-
former.
Check burner orifice; remove blockage.
Check continuity.
Check 110VAC supply (Fuses/Breaker)
No action is necessary. After the fireplace has warmed up,
the glass will clear.
No action is necessary. Flames will begin to turn more yel-
lowish after about 20 minutes of burning. If blue flames per-
sist, check air shutter setting and check log and embers are
positioned correctly.
Check air shutter setting.
A. Defective ignitor; loose
wire.
B. Misaligned electrode at
ignitor.
A. Defective ignitor.
B. No ground.
A. Manual on/off valve(s)
shut off.