Question about Carrier 38BRC036 Air Conditioner
This winter, my furnace suffered a power surge. I had to replace the board in the furnace. I am not sure if this relates to my current problem, but my issue is that my Carrier air conditioner keeps cycling on and off. The thermostat kicks it on and the air conditioner cools the house just fine, but when the thermostat is idle (i.e. the house is at the set temp), the air conditioner outside keeps kicking on for 30 seconds every 7 minutes. While on, the fan in the air conditioner (and I believe the condenser) run, but there is no air movement inside and no reason it should be on. (The furnace and thermostat remain inactive). The only way I can stop this is to shut the power breaker to the air conditioner off. I do this while I am away. Any idea what the issue is?
The compressor/condenser is being called all the time. The reason it goes off is because the evaporator (indoors) freezes up when the fan is told to turn off by the thermostat. This further cooling lowers the low side pressure below the low limit switch point turning off the compressor unit.
Solution: Make sure the thermostat is wired correctly. Green wire is usually the compressor wire but maybe not.
Posted on Jun 17, 2009
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Posted on Jan 02, 2017
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