Hi,
I have a fujitsu AOT54LJBYL. it says the compressor cannot operate,(error code 1a, and 14 blinks/flashes on the outdoor unit).
is there any easy way to check if it is the board or the compressor. I called for technician, he said fujitsu told him to replace both (inverter board and compressor) which is going to cost me a mint.

I can hear that the compressor trying to start but no luck, just shuts down the whole unit with the error code mentioned above.

The compressor is a 3 phase, I did a ohm test using just my normal multimeter and it seemed ok . not sure if I can use a normal multimeter to test the winding on a 3 phase compressor. I read somewhere that you need a special ohm meter test to do that.?

is there a way to test if the board if it the board or the compressor itself?

many thanks in advance,
regards
Misha10