AES Technical Bulletin #T-0068 Date of Issue 06/22/2007
Room fan
- Also known as the convection blower or the fan that blows the air into the room.
The room fan is located on the left side of the stove when looking at it from the front. The
room fan is responsible for blowing air through the air shell and heat exchange tubes.
The room fan will receive full voltage on heat setting #2 and above. The voltage to the room
fan will be lower on the #1 heat setting. The voltage to room fan can be changed to full
voltage by pressing the fan button located on the control panel.
The room fan should be taken out and cleaned at least once a year. If the homeowner has
pets, the blower should be taken out more often to clean out any hair that may have built up
in the squirrel cage. There are also a couple of lubrication points that can be oiled.
The blower’s label displays the different electrical requirements of the blower. If the blower
starts slowing down, or stopping, check the amp draw. If the amps are high- replace the
motor. An ohms check can also be done to check the circuit. It is also a good idea to check
the wiring harness and the voltage going to the motor to see if it is appropriate.
Auger Motor
- The auger motor is located at the base of the auger. The motor is held on be
one set screw to the auger. There are two bushings on the auger system- one is a bronze
bushing located at the top and a delron bushing at the base. The long bolt next to the auger
motor is meant to act as a stop for the motor. In case of an auger jam the bolt can be
removed to release tension on the motor/auger.
The auger motor does not receive varying voltage- it is either on or off. The on/off time will
vary depending on heat setting. The auger motor for the MagnuM Baby Countryside and
MagnuM Winchester is the same as the fuel stirrer motor on the MagnuM Countryside. If
the auger motor isn’t running check the high limit snap disk, voltage going to the motor,
obstructions in the auger, the vacuum/pressure switch, and continuity of the wiring harness.
If the auger motor is run on a high heat setting and if there isn’t proper air circulation the
motor will overheat and shut off. It is important to have adequate air flow in the room that
the stove is operating in, if not the heat will not transfer to other areas of the home.
Sensors
- There is 3 sensors located in various areas on the stove. The proof of fire snap disk
is located in the draft fan housing. The snap disk will have 2 brown wires connected to it.
The snap disk is a 110 degree N/O snap disk. The proof of fire snap disk also turns the room
fan on when the switch closes.
The high limit snap disk is located on the underside of the auger tube with 2 orange wires
connected to it. The snap disk is a 225 degree, N/C, manual reset disk.
The vacuum switch is located in the bottom of the stove underneath the exhaust manifold.
The vacuum switch will have a tube and 2 grey wires running to it. The switch can be
hooked up either in the N/C or N/O position. The vacuum tube is connected to a metal tube,
which leads to the area behind the ash pan in the upper right corner. It is possible for the
metal tube to corrode shut, which will affect the vacuum sensor.
