Vaillant · Turbomax Plus Boilers
This fault points to a problem with the EcoMax Pro boiler's pump, which could be anything from a complete failure, an overrun condition, or air trapped within the system preventing proper water circulation.
Click steps to track your progress.
Check your boiler's pressure gauge and top up the system pressure if it's too low (e.g., below 1 bar).
Bleed your radiators to release any trapped air in the heating system.
Restart the boiler by cycling the power off and on at the mains.
If the error persists, contact a qualified heating engineer to inspect the pump and resolve any airlocks or blockages.