S.07 — Heating Mode Pump Overrun Error (EcoTEC Pro / EcoTEC Plus)

What does S.07 mean?

This error indicates that the EcoTEC Pro / EcoTEC Plus boiler's central heating pump is running for an extended or unexpected period after the heating demand has ceased.

• Pump malfunction
• Control system error

Click steps to track your progress.

1. 1

   Perform a boiler reset by switching the main power off and then on.

2. 2

   Ensure the system pressure is adequate and that all radiator valves are open.

3. 3

   If the pump continues to overrun, contact a qualified heating engineer to inspect the pump and controls.