Napoleon Fireplaces GDS25P User Manual

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W415-0547 / C / 07.25.06
Pilot will not light.
Verify the "S" wire for the sensor and the "I" wire for the ignitor are 
connected to the correct terminals (not reverse) on the module and 
pilot assembly.
Verify no loose connections, electrical shorts in the wiring or ground 
out to any metal object.
Turn the ON/OFF switch to the "OFF" position. Remove the igniter 
wire "I" from the module. Place the ON/OFF switch to the "ON" posi-
tion. Hold a grounded wire about 3/16" away from the "I" terminal on 
the module. If no spark the "I" terminal module must be replaced. If 
there is a spark the "I" terminal is fi ne. Inspect pilot assembly for a 
shorted wire or cracked insulator around the electrode.
Makes noise with no
spark at pilot burner
- Igniter Spark gap is 
  incorrect
-  spark gap of the ignitor to the pilot should be .17" tor 1/8"
-  fi ll the tank.
- Out of propane gas.
TROUBLE SHOOTING GUIDE
B
EFORE
 
ATTEMPTING
 
TO
 
TROUBLESHOOT
PURGE
 
YOUR
 
UNIT
 
AND
 
INITIALLY
 
LIGHT
 
THE
 
PILOT
 
AND
 
THE
 
MAIN
 
BURNER
 
WITH
 
THE
 
GLASS
 
DOOR
 
REMOVED
.
SYMPTOM
PROBLEM
TEST SOLUTION
Pilot will not light.
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 3.2 and 2.8 volts A.C.
Remove and reinstall the wiring harness that plugs into the module. 
Remove and verify continuity of each wire in wiring harness.
Troubleshoot the system with the simplest ON/OFF switch
Verify the value and pilot assemblies are properly grounded to the 
metal chassis of the fi replace or log set.
Turn the ON/OFF switch to the "OFF" position. Remove the igniter 
wire "I" from the module. Place the ON/OFF switch to the "ON" posi-
tion. Hold a grounded wire about 3/16" away from the "I" terminal on 
the module. If no spark the "I" terminal module must be replaced. If 
there is a spark the "I" terminal is fi ne. Inspect pilot assembly for a 
shorted wire or cracked insulator around the electrode. 
Makes no noise with no 
spark at pilot burner
Verify all conncetions. Verify the connections from the pilot assembly 
are tight; also verify these connections are not grounding out to any 
metal. 
Verify the fl ame is engulfi ng the sensor rod. This will increase the 
fl ame rectifi cation. Verify correct pilot orfi ce is installed and inlet gas 
specifi cations to manual. (Remember, the fl ame carries the rectifi ca-
tion current, not the gas. If the fl ame lifts from pilot hood, the curcuit 
is broken. A wrong orfi ce or too high of an inlet pressure can cause 
the pilot fl ame to lift.
) The sensor rod may need cleaning.
Verify that the wire harness is fi rmly connected to 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. Clean sensor rod wih an enery cloth to remove any 
contamination that may have accumulated on the sensor rod. Verify 
continuity with multimeter with olms set at the lowest range.
Continues to sparks 
and pilot lights, but 
main burner will not 
light
Verify that the incoming gas line ball valve is "Open". Verify that the 
inlet pressure reading is within acceptable limits, inlet pressures must 
not exceed 14" W.C.
Pilot sparks but will not light
-  Transformer
-  A shorted or loose
   Connection
- Improper switch wiring
- Faulty module
-  Short or loose 
   connection in sensor rod
- Module is not grounded
-  Wiring
- Loose connection
- Module
- Poor fl ame rectifi cation 
  or contaminated 
  sensor rod
- Poor grounding between 
  pilot assembly and 
  gas valve
- Damaged pilot or dirty 
  sensor rod
-  Gas supply
Verify the value and pilot assemblies are properly grounded to the 
metal chassis of the fi replace or log set.
- Module is not grounded