The answer to 'my heat pump keeps shutting off' is that there are several common causes, including a faulty thermostat, low refrigerant levels, a dirty air filter, or a problem with the compressor or other internal components. When a heat pump keeps shutting off, it's usually a sign of an underlying issue that needs to be addressed.
Some common symptoms you may notice include the heat pump cycling on and off frequently, the home not reaching the desired temperature, or the system blowing cold air when it should be heating. Potential solutions can range from simple DIY tasks like replacing the air filter to more complex repairs that require a professional HVAC technician, such as recharging the refrigerant or replacing a faulty compressor.