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The furnace runs but blows cold air - Dometic Heating & Cooling

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  • 148 Answers

You meant blower running but no flame. check for opening at limit switch

Posted on Nov 24, 2013

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  • 2 Answers

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Posted on Jan 02, 2017

SOURCE: furnace fan running off and on blowing cold air

Need a little more info. Does the fan never stop? Is this a gas furnace? Is your thermostat in the fan auto not fan on position?

Posted on Dec 09, 2007

  • 108 Answers

SOURCE: amana furnace

This is no doubt due to failure of the "hot surface ignitor". This device lights the main burners for your furnace, and they fail a lot. I strongly recommend the replacement should be done by a technician.

Ray

Posted on Oct 25, 2008

Accurate Joe
  • 61 Answers

SOURCE: Electric furnace blows cold air before and after warm air.

It is normal. Your house has to go down a couple more degrees because the heat pump is not working. You can solve this by rewirng you thermostat. Take off the wire that goes to Y and tape off. Then take the wires that are marked w and e or w1 and put the wires to yellow. Do not run ac with it wired like this. If you need more information please post me back

Posted on Nov 29, 2008

luker711
  • 91 Answers

SOURCE: My AC unit wont blow the cold air.

No, you probably have a bad evaporative fan motor, capacitor or switching. It usually takes a Pro 1/2 hour to track down such a problem with good training.

Posted on Jul 09, 2009

koolbreezes
  • 540 Answers

SOURCE: furnace not blowing hot air

Also did you check to see if you added a jumper wire to the thermostat rc--rh ! R-means power to C-(cool)_--- r-power-to rh is( heat)! TYVM!

Posted on Dec 08, 2009

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1 Answer

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