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Enviro EF3 Technical Manual

Enviro EF3
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Troubleshooting
Circuit Board
ü If the Control Board has been placed in the ON /OFF thermostat mode, then turn the thermostat up
to call for heat.
ü Check the Heat Level Indicator. - If the # 2 light is flashing (see the # 2 light is flashing)
ü Check the fuses on the circuit board (see “Troubleshooting - Fuses”).
ü If the unit still does not start, contact your local dealer for service.
2. The stove will not operate when hot.
General
« Check the hopper for fuel.
« Incorrect air damper setting - Excessive air may consume the fire too quickly before the next drop of
fuel, leaving completely unburned fuel in the burn pot liner. Insufficient air will cause build up, further
restricting the air flow through the Burn Pot Liner. This in turn will cause the fuel to burn cold and very
slowly. Fuel may build up and smother the fire. (NOTE: Unit may require a change to the vent
system or installation of fresh air to correct Air to Fuel ratio problems).
« Combustion Blower failure - The Combustion Blower is not turning fast enough to generate the proper
vacuum in the fire box. Visual Check – is the blower motor turning?
« Check Vacuum levels in the exhaust channel by bypassing the Vacuum Switch, then remove the
Vacuum hose from Vacuum Switch. Check exhaust vacuum readings by placing the open end of the
Vacuum Hose on a Magnahelic Gauge (readings must be above 0.10” W.C. on low fire).
Note: If the motor fails to reach a 0.10” W.C. reading, then replace the Combustion Blower.
« Poor Quality Fuel – Insufficient energy in the fuel to produce enough heat to keep the stove burning
or operational.
« Exhaust Temperature Sensor failure Bypass sensor located on Exhaust Blower. If stove now operates
properly, the unit may require cleaning or a new sensor. Contact your local dealer for service.
« The unit may require cleaning. Contact your local dealer for service.
Timer Control
w Unplug the stove, open the left side panel. Jump the two (2) brown leads that are attached to the
140°F (60°C) temperature sensor. If the stove operates replace the 140°F (60°C) sensor.
Circuit Board
ü Check the Heat Level Indicator if a fire is not detected, or if the fire has gone out the #3 light will
flash because the Exhaust Temperature Sensor’s contacts have opened.
üCheck the Exhaust Blower voltage across the blower wires (>=220V on #5 setting and >= 165V on #1
setting). – Replace the Circuit Board if the Voltage reading is less than 82 V. with a line voltage >115
VAC.
üExhaust Temperature Sensor failure. – Bypass sensor located on Exhaust Blower if stove now operates
properly, the unit may require cleaning or a new sensor. Contact your local dealer for service.
üCheck the fuses on the circuit board (see “Troubleshooting - Fuses”).
3. The exhaust motor will not function normally.
General
« Open the left side access panel; check all connections against the wiring diagram.
« See “2. The stove will not operate when hot.” section.
« Contact your local dealer for service.
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Enviro EF3 Specifications

General IconGeneral
BrandEnviro
ModelEF3
CategoryPellet stove
LanguageEnglish

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