Hi
Just installed a used Alliance 3kw heat pump in good condition.
The only issue I'm having is that when having it on a timer it starts up and heats up until 55 degrees as per setting. Thereafter the red light on the control panel goes off and it does not switch on again. It remains off unless you manually start it.
According to my understanding of the temp diff setting, if the temp drops by 6 degrees for example, the unit still start again. This is not happening.
What could be the issue?