S.22 — Hot Water Pump Flow Error (EcoTEC 65kW)

What does S.22 mean?

This indicates an issue with the pump responsible for circulating water for domestic hot water (DHW) production in the EcoTEC 65kW boiler, suggesting problems with water flow.

• DHW pump malfunction
• Blockage in DHW circuit
• Airlock

Click steps to track your progress.

1. 1

   Check system pressure and top up if low.

2. 2

   Restart the boiler by switching off and on the main power.

3. 3

   Run hot water taps for a short period to see if flow improves or air is cleared.

4. 4

   If the problem continues, contact a qualified heating engineer to inspect the DHW pump and system for blockages.