Potterton EP2000. Since having the pump replaced, the pump goes off when the boiler thermostat turns the bolier off. Consequently the last radiator never gets hot. How do I make the pump run continuously to keep all radiators at the same temperature as before - even if this might be a waste of electricity? Many thanks. Eddie

Eddie, September 2021

I think the pump should be under the control of the boiler (for pump over-run purposes, etc)
Therefore I agree with previous answer - get the engineer back. Give him as clear a set of diagnostic information as you can.
Good luck

Mr T, December 2021

Get the engineer back to do the job properly

Dft4, September 2021