Why is my Daikin Heat Pump not heating or cooling as expected?
- DDavid WaltersAug 17, 2025
The Daikin Heat Pump might not be heating or cooling correctly due to an incorrect temperature setting. Check the temperature setting on the remote controller. Also, low water flow could be a factor. Ensure all shut-off valves are completely open, the water filters are clean, there's no air in the system, the water pressure is above 1 bar, the expansion vessel isn't broken, and the valve towards the expansion vessel is open. The water volume in the installation may also be too low; ensure it's above the minimum required value.