Heat pumps can stop and restart for several reasons, including:
1. **Normal Operating Cycle:** Heat pumps have operating cycles where they temporarily shut off after reaching the desired temperature, then restart when the temperature changes.
2. **Sensor or Control Issues:** Faulty sensors or control issues can cause unexpected shutdowns and restarts.
3. **Overheating Issues:** Overheating of the unit may trigger a thermal protection which temporarily shuts down the heat pump until it cools down.
4. **System Obstruction:** Obstructions in the ducts or ventilation system can cause overheating and shutdowns.
5. **Electrical Issues:** Electrical issues such as power surges or short circuits can also cause shutdowns and restarts.
If your heat pump stops and restarts abnormally, it is recommended to call a professional to perform a diagnosis and repairs if necessary.
