Mr Slim remote control not working

Hi All,

I have a Mr. Slim A/C unit with heat pump.
It operates fine by using the manual buttons SW1 & SW2 to allow heat/cool to 24 degrees Celcius.

But the remote control does not operate at all. It does not even beep when pressed. I have tried the obvious program code changes but still nothing.

Could it simply be the IR control board or is it deeper than that?

What about changing the batteries?

Have you tried zapping it against the camera on your moblie phone?

Is the IR sensor correctly positioned?

Chillin:):)

Beeper broken?;)