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W415-2349 / A / 10.31.19
EN
54
troubleshooting
13.0 troubleshooting
!
WARNING
• Always light the pilot whether for the fi rst time or if the gas supply has run out, with the glass door open or
removed.
• Turn off gas and electrical power before servicing the appliance.
• Appliance may be hot. Do not service until appliance has cooled.
• Do not use abrasive cleaners
symptom problem test solution
Pilot will not light.
Makes noise with no
spark at pilot burner.
Wiring. - Verify the wire for the sensor and the wire for the ignitor are
connected to the correct terminals. (not reversed) on the moduke.
NOTE: Sensor has 3/16" (4.8mm) connection and ignitor has 1/8"
(3.2mm) connection.
Loose connection. - Verify no loose connections, electrical shorts in the wiring or ground
out to any metal object.
Module. Turn the ON / OFF switch to the "OFF" position. Remove the ignitor
wire from the module. Place the ON / OFF switch to the "ON" posi-
tion. Hold a grounded wire about 3/16" (4.8mm) away from the
ignitor (spark) terminal on the module. If no spark, the ignitor terminal
module must be replaced. If there is a spark, the ignitor terminal is
fi ne. Inspect pilot assembly for a shorted wire or cracked insulator
around the electrode.
Ignitor spark gap is incorrect. - Spark gap the ignitor to the pilot should be 1/8" (3.2mm).
Transformer. - Verify the transformer is installed and plugged into the module.
Check voltage of the transformer under load at the spade
connections on the module with the ON / OFF switch in the "ON"
position. Acceptable readings of a good transformer are between 6.2
and 7.0 volts A.C.
Battery backup (if power is off). - Check batteries.
A shorted or loose connection. - Remove and reinstall the wiring harness that plugs into the module.
Remove and verify continuity of each wire in wiring harness.
Improper switch wiring. - Troubleshoot the system with the simplest ON / OFF switch.
Module is not grounded. - Verify the valve and pilot assemblies are properly grounded to the
metal chassis of the appliance or log set.
Pilot sparks but will not
light.
Gas supply. - Verify that the incoming gas line and ball valve is "Open". Verify
that the inlet pressure reading is within the acceptable limits. Inlet
pressures must not exceed 14" w.c. (34mb).
Out of propane gas. - Fill the tank.
Carbon is being
deposited on glass,
logs, rocks, media or
combustion chamber
surfaces.
Air shutter has become blocked. - Ensure air shutter opening is free of lint or other obstructions.
Flame is impinging on the glass,
logs, rocks, media or combus-
tion chamber.
- Check that the glass, logs, rocks or media are correctly positioned.
- Too much glass around the burner can cause carboning.
- Open air shutter to increase primary air.
- Check the input rate: check the manifold pressure and orifi ce size as
specifi ed by the rating plate values.
- Check that the door gasketing is not broken or missing and that the
seal is tight.
- Check that both vent liners are free of holes and well sealed at all
joints.
- Check that the minimum rise per foot has been adhered to for any
horizontal venting.
Continues to spark and
pilot lights, but main
burner will not light.
Short or loose connection in
sensor rod.
- Verify all connections. Verify the connections from the pilot assembly
are tight; also verify these connections are not grounding out to any
metal.
Poor fl ame rectifi cation or con-
taminated sensor rod.
- Verify the fl ame is engulfi ng the sensor rod. This will increase the
fl ame rectifi cation. Verify correct pilot orifi ce is installed and inlet
gas specifi cations to manual. (Remember, the fl ame carries the
recitifi cation current, not the gas. If the fl ame lifts from the pilot hood,
the circuit is broken. A wrong orifi ce or too high of an inlet pressure
can cause the pilot fl ame to lift). The sensor rod may need cleaning.
Poor grounding between pilot
assembly and gas valve.
- Verify that the wire harness is fi rmly connected to the module. Verify
that the ceramic insulator around the sensor rod is not cracked,
damaged, or loose. Verify the connection from the sensor rod to the
sensor wire.
Damaged pilot or dirty sensor
rod.
- Clean sensor rod with a fi ne steel wool to remove any contamination
that may have accumulated on the sensor rod. Verify continuity with
multimeter with ohms set at the lowest range.
SENSOR
IGNITOR
(SPARK)
PILOT
TUBE
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