Furnace turn on for one cycle and not turn on after that.

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My Trane furnace work only for a cycle and did not turn on the flame at after that. The pilot light on but no flame on. I turn down the thermostat and the pilot light off and I turn it up again but the only the pilot light on but not the flame. Can anyone help me on this?

Pony Yim

-- Pony Yim (PonyYim@yahoo.com), March 20, 2003


You may need to load it up with some more fire wood ?

-- Steve (unreal@home.com), March 24, 2003.

I have a Goodman furnace, but all furnaces work about the same. You have a flame sensor that detects the presents of a flame. If this item is bad, the furnace flame will turn on for a few seconds then off. It will try to fire twice, maybe three times. Then the furnace will not fire at all until the safety delay time is met, 30 min to an hour later.

The second thing that could be the problem is the actual control PCB, this was the answer to my problem. This PCB controls everything, it's a simple change. I had an older version PCB, so I had to rewire a few wires, but the instruction were easy. Please e-mail me if you have anymore questions.


-- Norm Baker (NormBakerJr@aol.com), March 26, 2003.

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