Harman Stove Company Harman Pellet P43 - Manual (Page 26)

26 P43 Pellet Stove 3-90-04301R18_03/13
P43 Maintenance - cleaning the Feeder body
Pellet fines may accumulate in the feeder body over
a period of time; therefore, a yearly inspection and
cleaning of this area must be performed.
To clean out fines:
1. Remove the rear cover panels.
2. Remove wing nut and feeder cover on the
side of the feeder.
3. Use a vacuum cleaner to remove all fines.
4. Reinstall feed cover, wing nut, and rear
cover panels.
5/16" Hex Head
Screws (2 on
each side)
5/16" Hex Head
Screws (2 on
each side)
Safety Features
The low draft sensor which is a vacuum differential switch, monitors the negative pressure (draft) in the
firebox through a port on the rear of the feeder. Poor draft will result in an interruption of power to the
feeder and the igniter. Poor draft can be caused by blockage in the exhaust, excessive build-up on the
combustion blower fan blades, a failed combustion blower, or a door or other opening to the firebox not
sealed properly. The hopper lid position switch, located in the right rear corner of the hopper opening,
will also interrupt power to the feeder and igniter if the hopper lid is not closed properly. The circuit
board is monitoring the position of these switches. During a feed cycle, if either of these switches were
to open, the feed motor light on the control will stay illuminated with the power being interrupted by the
switch. If the switch opens when the cycle is at rest, the power lights for the feed motor or igniter will not
illuminate. Be sure all doors, including the hopper lid, are securely closed when operating the appliance .
Pellet Fines may
build up in this area
Low
Draft
Sensor
Air
Intake
Flapper
Hopper Lid
Position Switch