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Starts and stops repeatedly

Before it even stats it will repeatedly ignite at 30 second intervals for about 12 times before starting.Then the heater will start up and after about 1 minute will turn off again It will repeat this process until the temperature level of the thermostat has been reached. After the thermostat level has been reached it will blow cold air though the ducts.

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I need more info!
Have you checked the diagnostic indicator?
Some possibilities are....
If the buner lights than rapidly goes out....You have a dirty flame sensor..... Remove the sensor with a 1/4" nutdriver. This sensor is located under the burners. It has "ONE" wire hooked to it. unplug the wire. pull ou the screw. Carefully remove the sensor. Clean it with a small piece of sandpaper. reintall. This should give you heat.

Pressure switch.....If the burner does not light. It can be a variety of problems. Check your flue pipe for obstructions.

Heat anticipator in the t/stat

Posted on Mar 08, 2009


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