I have a portable air conditioner/hvac and I'm having issues with it in heating mode. It's actually summer where I live but it was somewhat chilly as a storm passed over so I wanted to test heating on the unit I have.
Ambient temp was 19-20C according to my phone and another thermometer but the heating on the hvac/portable would not start unless I set it to 27C which is the maximum on the unit. It then cycled off shortly after as though it had reached it's 27C but my temp sensors only read a mere 1-2C increase to 22C. I wanted the hvac to produce heat at 24C. Does this sound like the thermostat in the hvac is faulty?