I have changed the blend door actuator and I have changed the switches in the dash and my heaters to only kicks on and off whenever it wants to what could I do next

Hello, there is something giving the climate control system information indicating it should shut off and turn on. The climate control system will need to be tested to find out what is causing this. The control head unit or ambient temperature sensors could be at fault, or there could be a wiring issue. Is anything else in the interior of the vehicle modified from original or has anything recently been serviced otherwise?