Question about Whirlwind FH-778 Air Conditioner

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Good evening all, This morning woke up to my home

Good evening all, This morning woke up to my home freezing cold i'd left the ac on 72, cut it off allowed home to naturally warm up by the afternoon it was getting hot again so turned air back on and set it for 75, went to the store came back about an hour later to my house being very warm checked ac and it was blowing out warm air, cut it off and back on and let it run for a while still warm air. now it 3 hours later and air is blowing cool once again no frost on any of the lines everything looks as it normally does does anyone know what would cause it to work intermittingly??

Posted by Freda A on

  • Freda A Aug 31, 2013

    apprently i posted this in wrong section i live in a home with an hvac system not the whirlwind air cooler/heater and humidifier i see listed at the top of my question. Everything inside and out looks fine no frost and the unit outside is running just worried it may go out again at night

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Brian Mills

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Sounds like a faulty Tstat that's sending a low voltage signal to the contactor coil only sometimes. The high pressure cut out or the compressor's internal thermal protection could of opened, and then closed again after cooling. Make sure the condenser is clean and not obstructed.

Posted on Sep 01, 2013

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Anonymous

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SOURCE: Our AC (Heat pump)is blowing hot air in the

Your unit may be going into a defrost cycle. If so sounds like a bad defrost board. It sends a signal to electric heaters inside to come on. Change board and sensor

Posted on Jul 28, 2009

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Anonymous

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SOURCE: My A/C blows out hot air every couple days

The only problem I could think of is that the air conditioning needs to be recharged as they call it because over time it will run out. You can usually go to a place like Firestone and they will do it (depending on how much you need) for around 100 or you can find a way to do it yourself you would buy either R134A or Freeze 12 that might be harder to get but cheaper

Posted on Aug 19, 2009

SOURCE: my central ac unit started blowing hot air instead

Could be a number of things make sure the unit outside is running both fan and compressor.If not check breaker,stat,24 volt wires going to condensor they get hit with weed eaters a lot or just need cut and stripped and wire nuts replaced.

Posted on Jul 28, 2012

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