Boiler not firing up for shower

[TeresaS]

I have a Halstead Ace High combi boiler which is now 3 years old. It has worked well but recently the boiler will not fire up when I turn the shower on. However, it still always fires up when I turn the bath tap fully on (which delivers a greater volume of hot water than the shower). It seems the boiler is not sensing the flow of water through the shower.

Any advice would be much appreciated.

Thanks

TeresaS

 

[Dotty]

Buy a new shower head.

 

[Resolute]

Is the shower head scaled up?

Has anything changed recently that would cause the shower/boiler to stop working?

 

[Mike Jackson]

It's a common fault with this design of boiler. Get a local gas safe registered engineer in to fix it for you. Shouldn't be an expensive fix.

 

[winqbear]

Could be faulty thermostatic cartridge in shower or blocked filter on hot inlet too shower

 

[TeresaS]

I have de - scaled the shower head....

Buy a new shower head.

 

[TeresaS]

Thanks...

I have de-scaled the shower head, and nothing has changed recently to explain problem....

 

[TeresaS]

Thanks. Shower is direct feed from boiler ie no unit.

 

[TeresaS]

Thanks! An encouraging reply and appreciated.