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Glow plug will not glow, on my Goodman 100 3 furnace

Ignition glow plug will not ignite (or lite), replaced it with a new one....I can light the furnce with a lighter and works fine but will not re-lite after the cycle.

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  • Richard Johnson PE
    Richard Johnson PE May 11, 2010

    model and serial number of the furnace, also the part number of the ignitor you installed? Was it an OEM part or a universal?

  • frankrhoney May 11, 2010

    is the glow plug in the direct path of the gas flow?

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6 Suggested Answers

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  • 2 Answers

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Posted on Jan 02, 2017

hotuna
  • 288 Answers

SOURCE: goodman furnace

Check the roll out switch(s) and the lock out switches. They are a small disc looking about the size of a nickle, with with 2 wires attached on them. There will be a re-set button in the middle that resembles a small peg. Push this in to re-set. As the glow coil shorted out, the fuse on the control board may have blown. On the newer furnaces find the main board and look for a car type fuse. If blown, replace. You also have the symptoms of a bad limit switch, by the clicking noise (the heat fan relay) and the blower fan running instantlly.

Posted on Jan 07, 2008

  • 46 Answers

SOURCE: no hot surface igniter

This is why swapping parts is never a good idea. It could be a board, pressure switch, or several other issues. I'm a service technician and realize that many furnace issues are difficult to diagnose over the phone, or internet.
Calling a qualified, NATE certified technician to diagnose and repair this properly is probably the best solution that I could suggest. Yes, there will be a bill and it will be expensive, but it will be a lot less so than changing out parts you might not need.

www.natex.org

Posted on Jan 03, 2009

  • 2461 Answers

SOURCE: goodman furnace won't ignite. No glow from ignitor.

yes if the ignitor has a very small crack on it it will not work replace it and see if it works but do not touch the end that glows when you put it in as the grease from your finger s will stop it working

Posted on Jan 08, 2009

  • 56 Answers

SOURCE: Main Fan won't turn off even with thermostat removed. Burner not

There is a chart with the wiring diagram and othere charts that will tell you what the 6 blinks are for. That should tell you what is wrong and what part you need. Sounds to me like the board has an issue or the gas valve is locked out.

Posted on Feb 13, 2009

  • 587 Answers

SOURCE: electrical ignition goodman furnace issue with gas

A lot of times that's the flame sensor, it's usually dirty and can be cleaned with a piece of extra fine steel wool.

Posted on Nov 22, 2009

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Check the roll out switch(s) and the lock out switches. They are a small disc looking about the size of a nickle, with with 2 wires attached on them. There will be a re-set button in the middle that resembles a small peg. Push this in to re-set. As the glow coil shorted out, the fuse on the control board may have blown. On the newer furnaces find the main board and look for a car type fuse. If blown, replace. You also have the symptoms of a bad limit switch, by the clicking noise (the heat fan relay) and the blower fan running instantlly.

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