When performing preventive maintenance on a heat pump, what should be checked to ensure proper function?

Ensuring the outdoor fan's proper operation is essential for the heat pump's function. The outdoor fan plays a critical role in dissipating heat during the cooling mode and ensuring efficient operation during the heating mode. If the outdoor fan is malfunctioning or damaged, it can lead to inadequate heat exchange, increased energy consumption, and potential overheating of the compressor, which may ultimately cause system failure.

Maintaining a well-functioning outdoor fan enhances the overall efficiency, extends the system’s lifespan, and helps prevent unnecessary breakdowns. Regularly checking the performance and condition of the outdoor fan is therefore an important aspect of preventive maintenance for heat pumps.