Napoleon Fireplaces NPI40, NPS40 manual Troubleshooting, Symptom, Test Solution

36

TROUBLESHOOTING

*NOTE: All troubleshooting procedures should be carried out by qualified technicians or installers.

CAUTION: When checking connections, installing jumper wires (for test purposes only) or replacing components, unplug heater from the receptacle to prevent electrical shock or dampage to the compo- nent. 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 TEST SOLUTION

The heater will not - Make certain there is power to the outlet and that the heater is plugged in.

start- 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 fi rmly 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.

-Push the "START" switch. If the heater fails to start, unplug the unit.

-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.

-Plug stove in, if stove starts replace switch.

-Replace the power control if this fails.

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).

Smoke in the room - 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.

The exhaust blower	- Remove the left side access panel and check all connections against the wiring
is not operating	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 certifi ed technician for service.
The ignitor will not	- Push the burn pot back against the ignitor tube making sure the ignitor lines up to the
light the pellets	hole in the burn pot.
however everything	- Make certain the air control rod is pushed in to start up position.
else in the heater	- Check all the electrical connections on the 120°F (49°C) temperature sensor located on
operates	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.
The auger motor	- Make certain the exhaust blower is operating
is not functioning	- Check the condition of the vacuum hose (located on the left side of the heater). Should
normally	not be cracked or torn.
	- Check the manual reset button on the 200°F (93°C) temperature sensor. Before
	re-setting the red button, check for the cause of the over-heating.
	- Check that the auger set screw is tight and not slipping.
	- If the auger still does not work, then apply 115V AC directly to the auger motor. If it still
	does not work, replace it.
	- Check the auger by bypassing the 200°F (93°) temperature sensor with a jumper wire.
	If auger works, replace the sensor.
	- Check the vacuum sensor by placing a jumper wire between the blue wire and the
	black wire that are attached to the sensor. If the auger works, test to see if the exhaust
	blower is producing enough vacuum (may require cleaning).
W415-0616 / B / 02.18.08	- If not, replace the vacuum sensor.