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Old 02-12-2012, 10:36 AM   #1
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american standard freedom 80 single stage furnace


I have an american standard freedom 80 single stage furnace. It is running like normal except it's blowing cold air. What's my 1st step? I opened lower panel and checked for loose wires so far. The LED light is flashing 4 times. What does this code mean?


Last edited by jwisn123; 02-12-2012 at 11:09 AM. Reason: update
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Old 02-12-2012, 11:05 AM   #2
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american standard freedom 80 single stage furnace


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Originally Posted by ronjon159 View Post
i have a coleman funace 2yrs old and its telling me i have a pressure switch stuck open what do i do to fix i need to fix it asap its cold my kids are freezing can anyone help me
Check the vent pipes outside for blockage if it is a high efficiency furnace. Post the model # and pics of it so we know which one it is.

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