Thank you for asking your question on Just Answer. Most problems with an electric furnace is caused by poor connections. A clamp on ammeter and a volt/ohm meter are useful tools to have when doing and diagnosing on a electric furnace. Click here and the links below for some information on servicing an electric furnace.
Trouble shooting Electric Heat problems
Coleman Electric Furnace Parts
Although not specific to your furnace click here for information on testing the sequencer.
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