Rav moshe rav aharon rav elyashiv rav henkin and most poskim are only Mattir when the compressor is on. However rav Shlomo Zalman Is famous for his teshuva in mInchas Shlomo that is
Mattir even when the compressor is not running. An ac Is Pashtus the same and is talui if it is blowing lulei rav elyashiv.