Have a Fujitsu 24BTU compressor with two 12 BTU indoor units. The heat worked great for the winter. Now that I want airconditioning the unit only seems to circulate the indoor air, no cooling. Model numbers for indoor units ASU12RMLQ, outdoor unit AOU24RML. I made sure the wiring was correct. Unit is only a few months old. The fan on the outdoor unit is working. I can't hear the compressor kicking in.
Check for a signal on a demand for heating at the ondensor and thermosat
Unit will not run unless both indoor fan coils are in cool mode.
I have run into this with the LG brand systems. try shutting power off to the outdoor unit to reset all units. If problem persists, it could have to do with a charge level of refrigerant (freon) or possibly a failed control board.
Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/cody_17f08cf8e340c06c
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