Woke up this morning to the front air not cooling correctly. Its not super warm here, but pretty humid so we are running the air. Watched it closer and found that the fan is running (per thermostat setting for fan on low) but the compressor is short cycling. I pulled out my meter and checked the thermostat and confirmed its calling for AC when the compressor is cycling off. If I let it sit for a while, then turn it on the compressor will run for 2-3 minutes and blow cold air, then after that the compressor turns off, and 30-60 seconds later turns on again. This repeats with the compressor cycle time getting shorter and shorter until it only runs for a short while (15-30) seconds before turning off. Power draw seems normal, the unit draws 10-11 amps when the compressor is on and does not spike when it shuts off. I pulled the inside filters and opened the dump valves with change. Next step is to try pulling out the freeze sensor (I am sure its not frozen up) then head to the roof when it cools down outside and see if anything is amiss, but was curious if anyone had any thoughts while I wait.
My thoughts are (in order of expense)
Freeze sensor
Run Capacitor
Board
Low refrigerant (possible but I am hoping unlikely since it does cool when it runs)
My money is on the cap causing the compressor to overheat and shut down, but not sure I will be that lucky. Any way to test the cap? I have always just replaced them.
My thoughts are (in order of expense)
Freeze sensor
Run Capacitor
Board
Low refrigerant (possible but I am hoping unlikely since it does cool when it runs)
My money is on the cap causing the compressor to overheat and shut down, but not sure I will be that lucky. Any way to test the cap? I have always just replaced them.
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