Set your indoor regulator to AC mode and lower the temperature setting. On the off chance that the heater fan kicks in, the issue isn't in the heater. In the event that the fan doesn't run, have a go at resetting the heater electrical switch. In the event that the fan still won't begin, call an ace â€" the fixes appeared here won't work. Next, check the outside gathering unit. The compressor (which sounds like a fridge) and fan ought to run..