Melted wires from thermostat on Lennox gas furnace

Old 03-08-14, 06:09 PM
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Melted wires from thermostat on Lennox gas furnace

I know nothing about furnaces really, but mine recently stopped working. Pilot light is still lit and blower works but the burner wont ignite. I noticed the two wires from the thermostat (yellow and red) were all melted. Also a bit of burnt wire coming from a box on the side wall of the furnace (transformer?). Tried cutting off the burnt ends and re-connecting the wires where they were before but obviously still nothing. Any ideas?
Old 03-08-14, 08:31 PM
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Welcome to the forums.

It sounds like you are describing wiring going to the flame roll out switch. That is not a good thing. It could mean cracked heat exchanger or possible burner problems. That switch may have a little red reset button on it. Try resetting it.

If it turns out the red reset button was out..... you should have the furnace looked at ASAP. This is not a matter to take lightly as you may have a CO issue.

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