Error 126 - DHW charge monitoring fault

What does 126 mean?

The user interface displays '126: DHW charge monitoring', indicating an issue with monitoring the domestic hot water charging process. This means the system cannot properly track or control DHW heating. This error typically triggers an automatic reset.

• Faulty sensor or component related to DHW charging.
• Insufficient flow or temperature during DHW charging cycle.
• Configuration error for DHW parameters in the control system.

Click steps to track your progress.

1. 1

   Turn off the main power supply to the heat pump for 30 seconds, then turn it back on.

2. 2

   Verify the settings for domestic hot water charging in the control panel to ensure they are correct.

3. 3

   Allow time for the automatic reset to occur (default 6 hours) or use the manual reset function (Line 6711) if available.

4. 4

   Contact a qualified service technician to inspect the DHW charging system components.