Air conditioner is set on cool and furnace is coming on and blowing hot air. What could be causing this problem? Thank you
Probably your compressor not running or the air con is out of Refrigerant.
I have the same issue. Had a tech over and said I need to replace the entire AC (condenser is bad)still on warranty labor is $1200 and freon $400The problem started when furnace fan was blowing warm air. went outside and nothing was running outside, Tech got it to run for 10 minutes then it would stop blowing cold air. Then start again in 30 minutes same cyle happening.
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Why would this cause the gas furnace to turn on?
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