The machine does not function at all with remote control and switches on the indoor unit.
Using a tester, measure the voltage between terminal " 1 " and " 2 " of connector CN2 on PWB ass'y.
measure the secondary voltage of transformer.
Is the measured value approx. 16.0 Vac ?
NO
YES Replace the PWB with a new one. YES Replace the fuse and varistor with new ones. Replace the ftransformer with a new one. Is the 2.5A fuse down ? NO
