Miller gas furnace inop!

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I have a Miller mmhb-090abhr-06 mmh9703-00311. The igniter heats up, burner comes on stays lit for about 40 sec. Then burner shuts off. then fires back up again, cuts off. Then the blower will come on only for a short while. It will do this over and over. I have replaced the igniter in Oct-07 it worked ok after that. Yesterday I replaced the igniter module, fan switch, limit switch. Any help would be appreciated, thanks, Chris.
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Robert
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Joined: Wed Feb 28, 2007 12:07 am
Location: Tennessee

Inspect burner for blockages and burner orifice. Could also be a wiring problem, bad ground, gas valve.


Would be best to have Tech look at it rather than replacing unneeded parts.



Thanks for inquiring,
Robert
Some people are Humbly Grateful, while some are Grumbly Hateful.................... Which one are you ?
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