Furnace sequencer keeps failing

Questions about repairs and parts for Coleman furnaces, air conditioners and heat pumps for manufactured homes. Click here for Coleman parts.

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Posts: 5
Joined: Tue Jun 21, 2011 5:41 am

I have a Coleman electric furnace model 3400A816. The sequencer for the heating elements fails about every year, last one only lasted 5 months. It's scary because when it fails the heating elements stay on with no fan running. It gets very hot. I noticed it gets damp from the AC running so that's probably the cause, it's in a bad location. Any of you have this problem, any ideas to fix it? Thinking of moving the sequencer to its own box outside the furnace where it won't get damp from the AC condensation.
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Posts: 5696
Joined: Wed Feb 28, 2007 8:01 pm
Location: Weedsport, NY

I would give it a try, what's the worst thing that can happen- it fails again?
"If I can't fix it, I can screw it up so bad no one else can either."
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