We have 3 heatpumps. 2 Mitsubishi and 1 Panasonic. I have issues with all 3 that sometimes I press something like the power button, the heatpump will beep to indicate it got input but nothing happens. If I press it a second time without moving the remote at all, it suddenly actions the request.
Given it's 3 heatpumps and 2 brands I am unsure what to believe is happening?