I have a worcester bosch 24 cdi fitted by BG a few years ago, now I am
having a problem, when I run my shower it goes from hot to cold then
hot again so on & so forth. does anyone know why this is happening.it
does not happen when I run the taps although the flow from the bath
hot tap is quite slow.
any help would be greatly appreciated, before I get someone in to look
at it I would like some idea of what is causing it. so i dont get
ripped off as usual .