Fuel Feed Related Problems
All England's stove works pellet units use a two auger
feed system. This system feeds the fuel though at a rate determined by
the control board settings. The upper auger located at the bottom of the
hopper runs intermittently. The lower auger which brings the pellets
from the upper auger to the fire runs continuously.
Each of the augers is independently run by a
motor and gearbox assembly.
These motors are identical and interchangeable. Feed related issues fall
under two categories; bottom auger stopped, or bottom auger turning but
no fuel is being fed.
Lower auger not turning. If the lower auger is not turning the
following should be checked; 1. Is the auger physically jammed? Foreign
objects such as wood chips or other objects that may have somehow gotten
into the pellets. 2. Is the motor getting power? If the motor is getting
power it will get fairly hot quickly. If the motor is getting power but
is not running and the auger is not jammed, the motor is bad. If the
motor is not getting power, either the motor's wires or the control
board are bad. Another possibility is if the electric motor is running
but the auger is not turning, this could be a loose setscrew holding the
motor to the auger, or a stripped gear in the gearbox. A stripped gear
would mean the auger motor must be replaced.
The lower auger is turning but no fuel is coming out. If this is
the case, the first thing that should be done is the hopper should be
emptied. Check the auger itself to see if it is physically jammed as
foreign objects in pellets could jam the auger. If the auger is free the
next step would be to determine if the motor is receiving power. The
motor will get warm if it is getting power within a few minutes. If the
motor is getting power and is not running the motor is bad. If it is not
receiving power the next step is to check the wiring. in some of the
newer units the top auger is wired through a
if this switch is bad, or if its vacuum hose is cracked or disconnected
the top auger will not run. To confirm this locate the switch and follow
the wires back. Remove the wire from the switch that connects to the
auger motor, follow the other wire from the switch to the control board
and unplug it from the board, then connect the first wire to the
empty terminal on the control board so that the auger motor wires are
both leading to the circuit board. Then turn the unit on if the motor
runs, check the wires and the vacuum hose and replace if necessary.
Another possibility could be the over temperature limit protection in
the control board. This will stop the top auger if the unit reads as
being too hot, the auger will start moving again if the unit cools to an
acceptable temperature however and generally will continue to operate.
The vacuum switch to the left in this picture is wired through the
top auger motor.
Vacuum related stoppages
The "door ajar" vacuum
switch present in newer model pellet units is wired through the top
auger motor and works through vacuum pressure pulled from the
firebox by means of a vacuum hose. If this hose is plugged
disconnected, or damaged, the top auger will not run.