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Coleman furnace error codes

I have a coleman furnace (model # G8T08012UHA11A). The blower is running when I turn on the furnace, but will not create any heat. I replaced the hot surface ignitor yesterday, but am still having the same issue. The status light is blinking a steady green only once.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

Therinnaiguy
  • 1420 Answers

SOURCE: Coleman forced air furnace blower

Rmove the two screws holding the blower in place and slide it out. With the power off, rotate the wheel and inspect for debris or an impingement. If everything turns easy, you have a bad motor or start capacitor. If you have rubbing, adjust the wheel. If the motor will not turn, replace it.

Posted on May 30, 2008

aries_67
  • 1 Answer

SOURCE: 1993 goodman status light 4 times blinking

I have a goodman GMP075-3 that won't turn on. I think it is the pressure switch since I do not have a vent blockage. What is a venter and where can I find it??

Posted on Dec 30, 2008

  • 4 Answers

SOURCE: Fix for coleman rv furnace

Check all limit switches and check power to gas control

Posted on Jan 06, 2009

machtcl1
  • 61 Answers

SOURCE: Goodman furnace GMPN080-4 Getting 4 RED blinks/Open Limit Swtch

You have a limit switch located in the furnace (a little bigger than a dime and located near the center of the front panel, sometimes the switch is mounted to a small fiberglass board) . There will be two wires going to it. They sometimes trip so often that they fail to automatically reset(due to dirty filters or undersized ductwork). You can SHUT OFF POWER TO THE FURNACE, then remove the two screws holding the switch in the furnace, pull the switch out of the furnace and tap on it and wipe it off.
The switch may work a few more times but should be replaced with the same size and type. You will see some rating printed on the switch somewhere. Write down all the numbers and get a replacemet from a furnace/AC supply house. If you have a meter and know how to use it you could check the switch for continuity.

Sometimes just a tap on the switch will get it going. There will also be a couple of rollout switches that could be tripped. They have little buttons on them to reset them. If they trip it may have other issues to be solved.
Hope this helps!
Matt

Posted on Feb 01, 2009

james3751
  • 614 Answers

SOURCE: American Standard Freedom 80 - 9 blinks - Ignition issue

I will try to help. Your furnace has to have a good ground before the igniter will work. The draft fan starts purges for a few seconds and the ignitor is supposed to come on. If not check to see if the contacts on the air switch on draft motor are closing. If you ahve changed the ignitor that is not your problem. Another possible problem is the baord that feeds the ignitor. But check the air switch first Rus. Keep in touch.

Posted on Nov 19, 2009

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