Napoleon Fireplaces NPI45 - Manuel (Page 51)

W415-0702 / B / 04.04.12
51
SYMPTOM TEST SOLUTION
Appliance SHUTS OFF AND THE #3 LIGHT FLASHES
The hopper is out of
pellets - Refi ll the hopper.
The hopper lid is open. - Close the hopper lid
The burnpot is not seated
completely into the burner
housing. - Insure the burnpot locating notch engages with the ignitor and that the burnpot sits
fl at.
The burnpot holes are
blocked - Remove the burnpot and thoroughly clean it.
The air inlet,the interior
chambers, or the exhaust
system has a partial
blockage. - Follow all cleaning procedures in the maintenance section of the manual.
The auger shaft is
jammed. - Start by disconnecting the power supply and emptying the hopper.
- The auger shaft may be jammed. For more information see “IN THE EVENT OF A
JAMMED AUGER” section.
The auger motor has
failed. - Remove the auger motor from the auger shaft and try to run the unit. If the motor
will turn, the shaft is jammed on something. If the motor will not turn, the motor is
defective.
The low limit switch has
malfunctioned. - Temporarily bypass the low limit switch by disconnecting the two brown wires and
connecting them together with a short piece of wire, then plug the appliance back in.
If the appliance comes back on and works, you need to replace the low limit switch.
CAUTION: This is for testing only! Leaving the switch bypassed will cause the
blowers to remain on constantly and the auger will continue to feed even if the fi re is
out. Do not operate the unit with the low limit switch bypassed.
The fuse on the control
board has blown. - Remove the control board. If the fuse appears to be defective, replace it with a 5
amp 125 volt fuse. Plug the appliance back in and try to run the unit.
The control board is not
sending power to the low
limit switch or other auger
system components. - There should be an approximate 5 volt current going to the low limit switch after the
appliance has been on for 10 minutes.
Flame has gone out in
burn pot while at feed
rate 1. A few unburned
pellets are in the pot. - Feed rate is too low for the quality and moisture content of pellet fuel that is being
used. Adjust trim of combustion blower down or auger motor up.
APPLIANCE SHUTS OFF AND #4 .LIGHT FLASHES.
The high limit switch has
tripped. - This is a manual reset switch but should only be done by a qualifi ed technician once
the cause of failure has been determined.
APPLIANCE FEEDS PELLETS BUT WILL NOT IGNITE
Blockage in igniter tube
or inlet for the ignitor
tube. - Ensure that the air intake hole is clear, it is located on the side of the igniter housing
on the back of the fi rewall.
The burnpot is not seated
completely into the burner
housing. - Place the burnpot so that the locating notch engages with the ignitor and the burnpot
is sitting fl at.
Defective ignitor. - Put power directly to the ignitor and observe the tip of the ignitor from the front of
the appliance. Within two minutes the tip should glow, if it does not, the ignitor is
defective.
The control board is not
sending power to the
ignitor. - Check the voltage going to the ignitor during start up. It should be at full current (115
volts). If the voltage is lower than full current, check for problems with the wiring. If no
problems are found, the board is defective.
SMOKE SMELL IS COMING BACK INTO THE HOME
There is a leak in the vent
pipe system. - Inspect all the vent pipe connections. Make sure they are sealed with RTV silicone
that has a temperature rating of 500°F or higher. Seal joints with UL-181-AP foil tape
and insure the square to round adapter piece on the combustion blower has been
properly sealed with the same RTV.
The gasket on the
combustion blower has
deteriorated. - Inspect both gaskets on the combustion blower to make sure they are in good shape.
Replace if necessary.
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