Bgd36cfg trouble shooting guide, Symptom problem test solution – Napoleon Fireplaces BGD36CFPTR User Manual

Page 45

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45

W415-0661 / C / 02.20.08

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" position. 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.

BGD36CFG 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 volt-
age 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" position. 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 connections. 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 cation current, not the
gas. If the fl ame lifts from pilot hood, the circuit 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, dam-
aged, or loose. Verify the connection from the sensor rod to the sensor wire.
Clean sensor rod with an emery cloth to remove any contamination that may
have accumulated on the sensor rod. Verify continuity with multimeter with
ohms 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

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