The answer to 'my heat pump keeps shutting off' is that there are several common causes, including a malfunctioning thermostat, refrigerant leaks, compressor issues, or problems with the electrical system. Symptoms may include the heat pump cycling on and off frequently, inadequate heating or cooling, or the unit not turning on at all.
In many cases, the solution may involve adjusting the thermostat, repairing refrigerant leaks, or replacing faulty components. However, it's important to diagnose the root cause, as some issues may require the expertise of a professional HVAC technician. Attempting to repair complex problems without the proper knowledge and tools can be dangerous and may even cause further damage to the system.