Question about Coleman Evcon Furnace Control Circuit Board 77990-320p
Replace the sequencer...which is just a series of snap disc relays that are staged. The first snap disc should kick on the first element & low speed of blower. Depending on how many elements you have, determines how many snap discs are on the sequencer. It could be a 2,3,4, or 5 stack. Generally the coil is 24 volts.
Posted on Dec 10, 2013
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Posted on Jan 02, 2017
Sounds like your flame proving device is not proving the flame. It is located on the last burner looks like a piece of thick wire sitting right beside the last burner. To Save you about 50 bucks service call take some steel wool and very gently clean the carbon that has built up on the surface of the device. Should only take 4 or 5 strokes.
Main blower will delay when in heating mode as to allow the heat chamber to build up enough heat to trigger the fan switch.
Posted on Nov 30, 2008
My Coleman Evcon ac unit,heater and blower does not work.not even the outside condenser comes on.Any ideas on what is the problem?
Posted on Aug 06, 2011
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