boiling hot showers

[michb]

hiya, our system has just been changed to a combi system (Vaillant combi boiler). Our shower is a hose connected to the bath taps. Even with the hot water tempreture turned down, the shower is too hot. I've tried to turn on the cold tap fully and the hot tap only slightly but this does not help.
1) Any ideas why this would happen ?

2) just so I know, any suggestions on how this can be corrected ?

Thanks !!!!!

 

[sooey]

Do you still have a large cistern in the loft to feed cold water to your bathroom, if so this should have been disconnected when the combi was fitted, and the bathroom fed from the cold mains. It sounds like you have a low pressure cold supply trying to compete against a mains pressure hot and losing

 

[michb]

well done sooey, you are spot on. I checked last night. This was a council job at my mums house. Anyone have any suggestions as to how to fix the problem, other than wait 6months for the council guy to return ? it will be difficult to connect the mains cold to the bathroom tap due to the design of the house..... thanks in advance guys

 

[sooey]

The easiest way to do it is up in the loft, just drain your tank and disconnect the rising main, then connect it to the distribution pipe that comes off the tank and feeds your bathroom. It's not the best way to do it but it will work, but bear in mind that whatever that pipe feeds that used to be on low pressure will then be on mains pressure.