Napoleon BGD36CFGN Installation And Operating Instructions Manual page 43

BGD36CFG TROUBLE SHOOTING GUIDE
B
EFORE ATTEMPTING TO TROUBLESHOOT
SYMPTOM
Pilot will not light.
Makes noise with no
spark at pilot burner
Pilot will not light.
Makes no noise with no
spark at pilot burner
Pilot sparks but will not light
Continues to sparks
and pilot lights, but
main burner will not
light
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,
PURGE YOUR UNIT AND INITIALLY LIGHT THE PILOT AND THE MAIN BURNER WITH THE GLASS DOOR REMOVED
PROBLEM
- Wiring 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.
- 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 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.
- Igniter Spark gap is
- spark gap of the ignitor to the pilot should be .17" tor 1/8"
incorrect
- Transformer
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
- A shorted or loose
and verify continuity of each wire in wiring harness.
Connection
Troubleshoot the system with the simplest ON/OFF switch
- Improper switch wiring
Verify the value and pilot assemblies are properly grounded to the metal
- Module is not grounded
chassis of the fi replace or log set.
Turn the ON/OFF switch to the "OFF" position. Remove the igniter wire "I"
- Faulty module
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.
- 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
- Out of propane gas.
- Short or loose
Verify all connections. Verify the connections from the pilot assembly are tight;
also verify these connections are not grounding out to any metal.
connection in sensor rod
Verify the fl ame is engulfi ng the sensor rod. This will increase the fl ame
- Poor fl ame rectifi cation
rectifi cation. Verify correct pilot orfi ce is installed and inlet gas specifi cations
or contaminated
to manual. (Remember, the fl ame carries the rectifi cation current, not the
sensor rod
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.
- Poor grounding between
Verify that the wire harness is fi rmly connected to module
pilot assembly and 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.
gas valve
Clean sensor rod with an emery cloth to remove any contamination that may
- Damaged pilot or dirty
have accumulated on the sensor rod. Verify continuity with multimeter with
sensor rod
ohms set at the lowest range.
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TEST SOLUTION
Verify the value and pilot assemblies are properly grounded to the metal
chassis of the fi replace or log set.
- fi ll the tank.
43
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W415-0661 / 12.07.07
Toll-Free 1-866-667-8454