Just called to a job on the way home to a Samsung unit that doesn´t switch off when it reaches temp. I set it to 24ºc Heating while the room was at 22ºc. The unit switched on and got to 26ºC according to the display on the front. Tried it on cooling and watched the OD unit and the inverter ramps up and never seems to slow down again. I had it set to 22ºc cooling and it was 19ºc in the room when I went back to the indoor unit.

I think it´s one of the PCB´s. Anyone care to disagree?

The unit is SH09BPD, less than 2 weeks old and never worked from day 1. Apperently got the room to 39ºc one time.

cheers
paul