- Joined
- 4 Jan 2008
- Messages
- 1
- Reaction score
- 0
- Country
hello i need help with my boiler the boiler gives hot water all the time but can not get central heating to come on at all it keeps shutting down with a code on the display saying s.7 wich means pump overrun can anybody help me with this and tell me what needs doing to the boiler and parts need replacing please it is very cold any help would be gratefull thanks