Napoleon B42NTR Installation And Operating Instructions Manual page 61

SYMPTOM
Continues to spark Short or loose
and pilot lights, but connection in sensor rod.
main burner will not
light.
Poor fl ame rectifi cation
or contaminated
sensor rod.
Poor grounding between
pilot assembly and
gas valve.
Damaged pilot or dirty
sensor rod.
Pilot lights Wiring / Connection.
Stops sparking
/ pilot remains lit
Wiring harness.
but burner will
not turn on.
Exhaust fumes Appliance is spilling.
smelled in room,
headaches.
White / grey fi lm Sulphur from fuel is being
forms. deposited on glass, logs or
combustion chamber
surfaces.
Flames are very Door is ajar.
aggressive.
Venting action is too great.
Main burner fl ame Blockage in vent.
is a blue, lazy,
transparent
fl ame.
Compromised venting.
Main burner goes Vent recirculation.
out: pilot goes out.
PROBLEM
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TEST SOLUTION
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.
Clean the glass, see "CARE OF GLASS" section
DO NOT CLEAN GLASS WHEN HOT.
If deposits are not cleaned off regularly, the glass may
become permanently marked.
Tighten door clamps if applicable.
Restrict vent exit with restrictor plate. See
"RESTRICTING VENTS" section if applicable.
Remove blockage. In extreme conditions, ice buildup
may occur on the terminal and should be removed. To
minimize this from happening again, it is recommended
that the vent lengths that pass through unheated
spaces (attics, garages, crawl spaces) be wrapped
with an insulated mylar sleeve. Prevent sleeve from
sagging. Contact your local authorized dealer for more
information.
Check venting system parameters (seal, length, rise, etc.).
Check joint seals and installation.
61
42.7_2A
W415-1293 / C / 07.28.16
EN