Troubleshooting - Napoleon NPS40 Installation And Operating Insctructions

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TROUBLEShOOTING

ALL TROUBLE SHOOTING PROCEDURES SHOULD BE CARRIED OUT BY QUALIFIED TECHNICIANS OR INSTALLERS.
When checking connections, installing jumper wires (for test purposes only) or replacing components, unplug
NOTE: Many of the following tests will require that the side panels are removed from the stove or the insert be
removed from its cavity to access the components. Before troubleshooting always confirm that all components
are clean and free of ash build up.
SYMPTOM
The heater will not
start
Smoke in the room
The exhaust
blower is not
operating
The ignitor will not
light the pellets
however every-
thing else in the
heater operates
TP - PEllET TROUblE ShOOTING
W415-0616 / E / 10.08.08
heater from the receptacle to prevent electrical shock or dampage to the component.
- Make certain there is power to the outlet and that the heater is plugged in.
- Hopper lid must be closed.
- Push the "START" switch. If the heater fails to start, unplug the unit.
- With the heater unplugged, examine all connections. Make sure no exposed wires are touching the
heater (except the chassis ground wire) and that they are all firmly connected.
- Check the manual reset hi limit switch.
- Check the stability and placement of connections against the wiring diagrams in this manual.
- Check that the burn pot is positioned properly.
- Ensure that connections to the power control module are connected.
- Place a jumper wire between the red and white wires that attach to the start switch.
- Replace the power control if this fails.
- The auger shaft may be jammed. For more information see "IN THE EVENT OF A JAMMED AUGER"
section.
CAUTION: Check the ignitor resistance before installing a new start-up timer as it may result in
another failure to the new start-up timer due to a short in the ignitor. The proper resistance through
the ignitor should be 30Ω to 50Ω (± 3Ω).
- Check all gasket seals.- Vent connections all sealed.- Unit has failed to reach 140°F within 15 minutes
and the blower has shut off.
- Restart unit.
NOTE: A minimal amount of smoke is normal during the start up process.
- Remove the left side access panel and check all connections against the wiring diagram. For the insert -
remove from cavity.
- Apply 115V AC directly to the exhaust blower and if the motor does not run, replace the blower.
- If the motor runs, have a dealer check the wire harness.
- See "The heater will not operate when hot" section
- Contact your local dealer or a certified technician for service.
- Poor quality or damp pellets take longer to light.
- Push the burn pot back against the ignitor tube making sure the ignitor lines up to the hole in the burn
pot.
- Make certain the air control rod is pushed in to start up position.
- Check all the electrical connections on the 120°F (49°C) temperature sensor located on the exhaust
channel.
- Place a jumper wire between the two leads on the 120°F (49°C) temperature sensor and if the ignitor
works, replace the sensor.
- If it still fails to light, replace the ignitor.
WARNING
!
TEST SOLUTION