red hot water from bathroom tap

[atm84]

Any thoughts to why almost boiling water is coming from the taps? Faulty stat on the hot water cylinder?

 

[jeremy]

How do you know it's almost boiling? If you suspect a faulty stat, turn it down and see if it removes the demand.

 

[atm84]

Because it feels bloody hot, can't put hand under running water when the mixer tap is turned fully on the hot.

 

[atm84]

What would you suggest after the stat has been turned down and doesn't do anything?

 

[jon small]

could be the stat failed in the closed position with contacts welded together in which case turning it down would make little difference especially if old type without secondary manual overheat stat

 

[Plonker 3]

Have you waited a while before turning the tap back on after turning the stat down?

 

[MDJ]

What would you suggest after the stat has been turned down and doesn't do anything?

A new stat

 

[SPARTYKUS]

Any thoughts to why almost boiling water is coming from the taps? Faulty stat on the hot water cylinder?

What heating system is it? Does it have solar water heating? If so how old,as in, some older systems don't have a thermostatic mixer on the output from the tank and it can get damed hot in there.

 

[7029 dave]

New stat needed maybe?.

 

[Geoffsd]

Because it feels bloody hot, can't put hand under running water when the mixer tap is turned fully on the hot.

Isn't that how it's supposed to be and why you have a mixer tap?

 

[trev]

What would you suggest after the stat has been turned down and doesn't do anything?

If there's a tank full of mad hot water of course there'll be no immediate difference two minutes after you've turned the stat down

 

[atm84]

Why not have a mixer tap? Its not at mine, its at a relatives of mine. Its a direct vented hot water system.

 

[Geoffsd]

Read more carefully.

 

[atm84]

Read more carefully.

Yeah read again....

 

[Geordie Spark]

Useful info on safe hot water temperatures here: http://www.ciphe.org.uk/Global/Databyte/Safe Hot Water.pdf

Is this: Unvented Water Heater Faults any use???