Napoleon Fireplaces GDS25N GDS25P manual Trouble Shooting Guide, Symptom, Problem, Test Solution

26

TROUBLE SHOOTING GUIDE

BEFORE 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.	- Wiring	Verify the "S" wire for the sensor and the "I" wire for the ignitor are
Makes noise with no		connected to the correct terminals (not reverse) on the module and
spark at pilot burner	- Loose connection	pilot assembly.
		Verify no loose connections, electrical shorts in the wiring or ground
	- Module	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 fine. Inspect pilot assembly for a
		shorted wire or cracked insulator around the electrode.
	- Igniter Spark gap is	- spark gap of the ignitor to the pilot should be .17" tor 1/8"
	incorrect

- Out of propane gas.

- fill the tank.

Pilot will not light. Makes no noise with no spark at pilot burner

-	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 3.2 and 2.8 volts A.C.
-	A shorted or loose	Remove and reinstall the wiring harness that plugs into the module.
	Connection	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 value and pilot assemblies are properly grounded to the
		metal chassis of the fireplace or log set.
- Faulty module		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 fine. Inspect pilot assembly for a shorted wire or cracked insulator around the electrode.

Pilot sparks but will not light	- Gas supply	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.
	- Module is not grounded	Verify the value and pilot assemblies are properly grounded to the
		metal chassis of the fireplace or log set.
Continues to sparks	- Short or loose	Verify all conncetions. Verify the connections from the pilot assembly
and pilot lights, but	connection in sensor rod	are tight; also verify these connections are not grounding out to any
main burner will not		metal.
light	- Poor flame rectification	Verify the flame is engulfing the sensor rod. This will increase the
	or contaminated	flame rectification. Verify correct pilot orfice is installed and inlet gas
	sensor rod	specifications to manual. (Remember, the flame carries the rectifica-
		tion current, not the gas. If the flame lifts from pilot hood, the curcuit
		is broken. A wrong orfice or too high of an inlet pressure can cause
		the pilot flame to lift.) The sensor rod may need cleaning.
	- Poor grounding between	Verify that the wire harness is firmly connected to module
	pilot assembly and
	gas valve
	- Damaged pilot or dirty	Verify that the ceramic insulator around the sensor rod is not cracked,
	sensor rod	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.

W415-0547 / B / 05.08.06