Condensation on heat pumps
A question we often get is, “Why is my heat pump leaking?” In most cases, it’s simply condensation. Here’s what causes it and how to tell if it’s truly a leak.
Condensation on heat pumps happens when warm air meets cold surfaces. In a heat pump, the system warms water incrementally—about 2 degrees at a time—by using the heat from the air it pulls in. The warmth is absorbed by the water, and the cooler air is then released.
As the warm water meets the cool air, condensation forms within the heat pump. This moisture usually drips out from the back of the unit. It’s completely normal and not a sign of an actual leak!
How to test if your heat pump is leaking or if it is just condensation
Please turn off the heat pump for at least 30 minutes minimum, though a few hours would be ideal if possible. Make sure the filtration system continues to run during this time. We need water flowing through the heat pump to perform the test.
If the leak stops, it’s likely condensation. By turning off the heat pump, you have eliminated the warm and cold colliding and this will stop any extra condensation being created.
Sometimes the valves on the rear of the heat pump can loosen after time due to the vibration of the running unit. You can turn the system OFF including the filtration, then hand tighten the valves and this may stop any minor leaks.
If the leak persists, there may be an actual leak somewhere and you will need to have a technician attend the site for a service.
If you are having any other issues or errors on the display of your heat pump, please check out our “Not so common heat pump errors” here. Alternatively you can contact us through the website, give us a call or check out our social media.
