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Coleman evcon furnace

I have an evcon furnace model#7970C856. I have gas to and out of the valve but the pilot will not light. I've changed the thermo coupler and blew the line out and cleaned the whole burner assembly. The pilot still wil not light. What could be the problem?

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Did you clean the pilot orfice?? It has a very small opening about the size of a hair. You may have to use a needle to open the opening....Are you getting gas to the pilot orfice assembly from the Gas Valve when you set it to Pilot?? If not then check the pilot adjustment screw on top of the gas valve at the pilot tube. CW decreases flow.

Posted on Nov 18, 2013

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SOURCE: Pilot won't light

There is a remote possibility that the replacement thermocouple is defective.

Posted on Nov 17, 2013

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