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Coleman Evcon Furnace Model G8T10012UHB11A

Error code flashes five times. Book says Rollout switches are bad. I have replaced all swithces and flame sensor. Furnace does same thing. Ignites and shut down after 10 seconds, flashes 5 times. Anyone Know my problem.

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You probably have a cracked heat exchanger which is causing the rollout switches to trip.even the tiniest of cracks will cause the fan to blow the flame back into the unit and cause them to trip. check the heat exchanger for even the tiniest of cracks if so replace it. and be sure to have a carbon monoxide alarm in your home.

Posted on Oct 30, 2008

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