Napoleon HD81NT Installation And Operating Instructions Manual page 46

46
SYMPTOM
Continues to
spark and pilot
lights, but main
burner will not
light.
Fireplace won't
perform any
functions.
Night light or
option blower
won't function
Tp - TROUbLE SHOOTING HD81
W415-0687 / 12.02.08
PROBLEM
Short or loose connection
in sensor rod.
Poor flame rectification or
contaminated sensor rod.
Poor grounding between
pilot assembly and gas
valve.
Damaged pilot or dirty
sensor rod.
Receiver switch is in the
wrong position.
No power to the system.
Transmitter isn't opera-
tional.
Control module switch is
in the wrong position.
COM switch is
unplugged.
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 flame is engulfing the sensor rod. This will
increase the flame rectification. Verify correct pilot orifice
is installed and inlet gas specifications to manual.
(Remember, the flame carries the rectification current, not
the gas. If the flame lifts from pilot hood, the circuit is
broken. A wrong orifice or too high of an inlet pressure
can cause the pilot flame to lift.) The sensor rod may
need cleaning.
- Verify that the wire harness is firmly 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 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.
- Verify that the 3 position switch on the receiver is in the
"REMOTE" position (middle).
- Check breaker to verify it's in the "ON" position.
- Check battery power and battery orientation.
- Verify ON/OFF switch is in the "I" position which denotes
on.
- Verify "COM" switch is plugged into the front of the control
module.