If you see water leaking from your heat pump, it can be a cause for concern. Sometimes it's a little problem you can fix quickly, but you'll often need to bring in an HVAC contractor ASAP to avoid further damage.

Clogged or Disconnected Condensate Drain Line

One of the most common reasons for a leaking heat pump is a clogged or disconnected condensate drain line. The condensate drain line is responsible for channeling away the moisture that collects during the heat pump's operation. If the drain line becomes clogged with debris or gets disconnected, water can accumulate and lead to leaks around the indoor unit.

Inspect the line for any visible clogs or obstructions. If you notice a blockage, you can try clearing it using a wet/dry vacuum or a pipe brush. If that doesn't work, you'll need to bring in an HVAC contractor for a more detailed inspection.

Frozen Evaporator Coil

Another possible cause of a leaking heat pump is a frozen evaporator coil. When the evaporator coil becomes frozen, it can cause water leakage when the heat pump is running. Additionally, you may notice the formation of ice on the indoor unit.

To resolve this problem, start by turning off the heat pump to allow the ice to melt. Inspect the air filter and replace it if it's dirty or clogged, as restricted airflow can contribute to freezing.

If that doesn't work, you'll need to have an HVAC contractor check the refrigerant levels to make sure an incorrect charge isn't causing your leak.

Damaged or Disconnected Condensate Pan

A damaged or disconnected condensate pan can also be the cause of a leaking heat pump. The condensate pan is responsible for collecting the water that drips from the evaporator coil. If the pan is cracked, rusted, or improperly aligned, it can lead to water dripping or leaking from the indoor unit.

To address this issue, inspect the condensate pan for any signs of damage. If you identify cracks or rust, replace the pan with a new one.

Refrigerant Leak

While less common, a refrigerant leak can also result in water leakage from your heat pump. If you notice water accompanied by hissing sounds, reduced cooling or heating performance, or increased energy bills, a refrigerant leak may be the culprit.

If you suspect a refrigerant leak, contact a professional HVAC technician immediately. Refrigerant leaks can be hazardous to your health and the environment. An HVAC technician will locate and repair the leak and then recharge your system.

Contact a local company to learn more about heat pumps.