- Joined
- 3 Jan 2006
- Messages
- 47
- Reaction score
- 0
- Country
hi all, could anyone tell us a problem with the 552 bbu. new thermocouple has been fitted by heating engineer pilot light stays on, when heat/hot water is turned on bbu fires up but after 5 mins bbu and pilot go out. relight pilot all ok then same thing over and over again. engineer is coming back monday but is there something we can do to check system,pump running room stat on max thanks for any info