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Coleman furnaces model number 7966-756 it wount light

It wount light blower works fine but nothing else worked fine last year

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  • 571 Answers

Check the ignitor.

Posted on Dec 17, 2013

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6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

22yooper
  • 828 Answers

SOURCE: 2001 Coleman Niagara Elite folding

You may have one of two problems; The pilot orifice is very small and allows only a limited flow and any air trapped in the gas supply takes some time to bleed out while you are holding down the pilot button. Or the pilot orifice may be plugged in which case you would have to replace it.

Posted on Jul 10, 2008

  • 147 Answers

SOURCE: I replaced my Rheem Ruud

When the purge motor turns on, the controller is waiting for proof that it is running before ignition. On your model I think it a differential pressure switch and it should be in front of the furnace. Should be able to see a pressure or vacuum line running to. If it isnt there there may be a switch inside purge motor. If there is more than 2 wires running to the motor it probable is there. Anyway the controller is waiting for proof.

Posted on Nov 05, 2008

  • 2 Answers

SOURCE: Rheem gas furnace pilot lights, but no burners or fan

If the burners do not fully ignite, the sensor will shut the furnace down. The lack of sufficient burner flame is a gas valve or gas pressure problem within the valve.
Replacing the gas valve with the original one may get you going. I surely suggest a professional service company for safety reasons and a thorough inspection. A 20 year old furnace is past it's normal life span.

Posted on Jan 06, 2009

solveditnow
  • 39 Answers

SOURCE: (HVAC) Furnace Not Igniting Quickly

Make sure a back draft in the flue is not happening. Wind can blow it out until the flue heats up. The flame sensor may not be close enough to the burner flame. It may be weak and need to be replaced or if its an optical one it may be dirty and not see the flame very well. Its not wasting much gas but it puts extra wear and tear on the gas controls, is noisy, and, as you said, blows cold drafty air. A gas control system that has issues of any kind is not real safe. It needs to get fixed.

Posted on Jan 08, 2009

koolbreezes
  • 540 Answers

SOURCE: why does my furnace gas valve keep going bad

Check the ground wire to the gas valve or the wire in the middle of the gas valve that says mv--pv, and that is a ground..

Posted on Dec 19, 2009

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Coleman mobile home furnace Model #7966-756 will not turn on. The pilot light is lit, there is power coming to the step-down transformer inside the furnace. The reset switch is in the right position. It...


I had a similier problem, Check your neutral ground? also alot of power companies will come out and do a basic check of the voltages going to the furnace, and can offer advice for free.

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