Enviro EF-119 Troubleshooting, w If the motor runs, have your dealer check the harness

Troubleshooting

3. The stove will not function in the “AUTO” mode when hot.

wIf the unit fails to operate, by-pass the auto side of the switch by inserting a jumper wire between the dual black wires and the dual brown wires located on the back of the switch. Plug the stove back in. If the stove operates, replace the switch.

wCheck the hopper for fuel.

wIncorrect 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).

wCombustion 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?

wCheck 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.

wPoor Quality Fuel – Insufficient energy in the fuel to produce enough heat to keep the stove burning or operational.

wExhaust 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.

wThe unit may require cleaning. Contact your local dealer for service.

4. The exhaust motor will not function normally.

wOpen the left side access panel; check all connections against the wiring diagram.

wIf all the connections are verified and the exhaust blower does not function at all, tap lightly on the exhaust blower’s motor end cap, this may loosen a tight motor.

wApply 115 V AC directly to the exhaust blower. If the motor does not run, replace the blower.

wIf the motor runs, have your dealer check the harness.

wContact your local dealer for service.

5. The convection blower will not function normally.

wCheck all the connections between the controller, switch, and the convection blower against the wiring diagram.

wIf the convection motor will not run, apply 115 V AC to the motor directly. If the motor runs, replace the fan controller. If the motor does not run, the convection blower has failed. Replace the blower.

wIf the convection blower runs on high at all times (no control with the fan controller), check the connections from the 160°F (71°C) sensor (located on the upper left side of the firewall) and convection fan controller to the blower. Disconnect one of the wires from the sensor; if control of the convection blower returns to the fan controller, replace the sensor.

wIf the motor is still on high, re-connect the sensor and replace the convection fan controller.

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