Heat pump repair involves diagnosing and fixing issues with a heat pump, a device that transfers heat between the inside and outside of a building. Common problems include refrigerant leaks, faulty thermostats, and electrical issues. Regular maintenance can help prevent these problems and ensure efficient operation. During a repair, a technician may check components like the compressor, evaporator coils, and ductwork. They will also inspect the refrigerant levels and test the system's overall performance. Timely repairs can extend the lifespan of the heat pump and improve energy efficiency, ultimately saving homeowners money on energy bills.