While you wait for answers, we may have found some information which could help you.
Click here for Water Pump Model
Oil fired boiler thermostat?
One radiator in a bedroom is always cold?
Greenstar 24Ri boiler, fast flashing - can I reset?
Remove cover off gas boiler?
Remove boiler cover?
How do i stop the time from flashing on the Siemens RDJ100RF?