Service manual

Exhaust Temperature Sensor: This sensor is anormally open, is mounted on the exhaust blower

housing, and has two functions:

1. Should the fire go out, this sensor will shut the stove off when the exhaust temperature drops

below its set point.

2. When the auger is turned OFF via the dial-a-fire, the exhaust temperature will drop, when the

exhaust temperature drops below set point the sensor will shut the stove OFF.

Green Light: For EF 3 & 4 this light will flash in conjunction with the pulses of the auger. For the EF2

the light signals you to put the stove into the auto position.

Ignitor: A heating element used to ignite the pelletized fuel when the start-up switch is activated; the

ignitor is activated by the start-up timer. Air passes through the ignitor tube, which the air becomes

super heated drying the fuel and then igniting the fuel through convection.

Phase Controller (EF4): The EF 4 has a phase controller which is responsible for reducing the speed

of the combustion/exhaust blower as the dial-a-fire is turn down to a lower flame setting, this will

decrease the air flow through the appliance helping the stove run more efficiently.

Start-Up Switch (EF 3 & 4): When this switch is pressed it will initiate a start-up timer including the

ignitor if installed in the unit.

Start-Up Timer (EF 3 & 4): This start-up timer bypasses the exhaust temperature sensor allowing the

stove to operate when the unit is cold. The timing cycle is initiated by pressing the start-up switch.

The start-up timer is located right under the timing control module on the right hand side rear pillar.

This is also responsible for turning the ignitor ON.

Timing Control Module: The timing control module is mounted above the start-up timer located on

the right rear support pillar. This module controls the switching of power to the auger. The timing

Components Of A Pellet Stove

control modules switching duty is controlled by

the dial-a-fire.

Vacuum Switch: This safety device (located on the

left rear support pillar) detects vacuum in the

exhaust system. If the blower fails or the vent

pipe becomes plugged, this switch will sense

that there is no air flow through the exhaust

vent and will stop the auger from feeding

pellets and then finally shutting the stove OFF.

Major Components of our Pellet Stoves:

1. Hopper

2. Auger

3. Combustion Air

4. Combustion Blower

5. Exchanger Tubes

6. Exhaust Blower

7. Burn Pot

8. Ash Pan

Figure 40: Major Components of our Pellet Stoves.