u/Key_Deal3588

Hi Group: I am in Texas!!! Last night my mini split in the bedroom started flashing P4. The indoor fan is still working but the outside fan and compressor are off. I have checked resistance on leads of compressor and fan and all are within spec and no shorts to ground, The PCB board looks brand new as my unit is only 4 years old. The coil on the condensing unit is clean. What are your thoughts? New board?

Hi Group: I am in Texas!!! Last night my mini split in the bedroom started flashing P4. The indoor fan is still working but the outside fan and compressor are off. I have checked resistance on leads of compressor and fan and all are within spec and no shorts to ground, The PCB board looks brand new as my unit is only 4 years old. The coil on the condensing unit is clean. What are your thoughts? New board?