Napoleon B36NT Instructions D'installation Et D'utilisation page 76

76
SYMPTOM
Carbon is being
deposited on glass,
EN
logs, rocks, media
or combustion
chamber surfaces.
Continues to spark
and pilot lights, but
main burner will not
light.
Pilot lights
Stops sparking
/ pilot remains lit
but burner will
not turn on.
Exhaust fumes
smelled in room,
headaches.
W415-1401 / D / 05.25.16
PROBLEM
Air shutter has become
blocked.
Flame is impinging on the
glass, logs, rocks, media or
combustion chamber.
Short or loose
connection in sensor rod.
Poor fl ame rectifi cation
or contaminated
sensor rod.
Poor grounding between
pilot assembly and
gas valve.
Damaged pilot or dirty
sensor rod.
Wiring / Connection.
Wiring harness.
Appliance is spilling.
TEST SOLUTION
- Ensure air shutter opening is free of lint or other
obstructions.
- Check that the glass, logs, rocks or media are correctly
positioned.
- Too much glass media around the burner can cause carbon
deposits.
- Open air shutter to increase the 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 minimum rise per foot has been adhered to for
any horizontal venting.
- 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
orifi 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 orifi ce or to 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 with a fi ne emery cloth or synthetic
scrub pad to remove any contamination that may have
accumulated on the sensor rod. Verify continuity with
multimeter with ohms set at the lowest range.
- Inspect all wires, ensure good tight connections. Verify
that all wiring is installed exactly as specifi ed.
- Inspect the wiring harness, and verify the harness is
tightly connected to the module. Verify that all wires are
connected in the right order. See "WIRING DIAGRAM"
section.
- Check all seals.
- Check if exhaust is re-entering through an open door or
window.
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