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Furnace blows cold air

Blows hot then cold, won't shut off

Posted by Anonymous on

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  • Ruud Master
  • 1,363 Answers

Sounds like blower relay stuck.

Posted on Aug 11, 2015

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6 Suggested Answers

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Posted on Jan 02, 2017

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Ice maker
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SOURCE: ac blowing hot air instead of cold

Check for the following problems
(1) Check if compressor is geting power
(2) Check if system have Refrigerant in it
(3) Check if pressure switches are operational
(4) Check Thermostrat setting.
(5) Check for dirty or block condenser or evaporator

Send feed back if you solve problem

Posted on Mar 27, 2008

SOURCE: comp shuts off

Coils could be dirty. Compressor could be getting too hot and cutting off. Will have one fan motor that turns condenser fan and evaporator blower.

Posted on Jun 08, 2008

  • 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

diths_kri
  • 67 Answers

SOURCE: furnace blowing cold air

THERMO

Posted on Jan 07, 2009

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