Hi all
My Vaillant Turbomax fires up when I turn the heating on, the radiators get warm and after 2 minutes it shuts down with an s7 status code of 'pump overrun'. The radiators never get very warm.
Once the boiler has cooled down the heating doesn't fire up again unless I manually turn the temperature dial down then back up (or if I press 'override' on the digistat).
I recently took some radiators off for decorating purposes but these have all been bled so there's no trapped air in the rads. Could there be trapped air in the pump?
Many thanks for your time
My Vaillant Turbomax fires up when I turn the heating on, the radiators get warm and after 2 minutes it shuts down with an s7 status code of 'pump overrun'. The radiators never get very warm.
Once the boiler has cooled down the heating doesn't fire up again unless I manually turn the temperature dial down then back up (or if I press 'override' on the digistat).
I recently took some radiators off for decorating purposes but these have all been bled so there's no trapped air in the rads. Could there be trapped air in the pump?
Many thanks for your time