This is in addition to the message I just posted. Like I mentioned I live in a mobile home. I have a coleman furnace with an automatic ignition. I have checked the thermostat to make sure it is in the correct operating mode. I have also checked to see that electrical power is ON. I chave checked to see that the knob on the gas control valve is in the full on position. I have made sure filters are clean and that return grilles are not obstructed and supply registers are open. I am sure that furnace flue piping is open and ubobstructed. For some reason it goes on however it does not heat up like it should. I would appreciate any help you can offer. My email is tjbmlm@msn.com I am also on msn.com under the same email. I look forward to hearing from you as soon as possible
Observe the cycle. Does the burner come on and in a minute the blower comes on. After a few minutes does the burner go back out and then the blower run for another couple of minutes.
Is the blower wheel clean and running at full speed? You mentioned that the flue is clear, but how about the supply and return ductwork?
Just a couple more ideas to check…
Andy
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