What does Bit12: 1-Fault mean?

The Leaving Water Temperature (LWT) from the unit is too high in heating mode. This could indicate inadequate heat dissipation.

• Low water flow through the unit
• Insufficient load for heating
• Faulty LWT sensor reading

Click steps to track your progress.

1. 1

   Ensure proper water flow is maintained through the unit.

2. 2

   Confirm that the heating load is sufficient.

3. 3

   Check the LWT sensor for accurate temperature reporting.

4. 4

   Contact a service provider for detailed analysis.