Worchester 24i shower issue cold

[Mousemarty]

have had the 24i since we moved into our property 5 years when we moved in flow rate was rubbish so had the secondary HE changed, just before winter getting similar symptoms lose of pressure and intermittent hold cold issues , so replaced the HE again, solved all the taps and bath intermittent problems, shower was ok for a few days but now it’s cycling intermittent hold cold. All other taps and bath( which is on sale pipes as shower) are fine.

Any ideas? Thanks

 

[Riley]

Who changed the HE

 

[Mousemarty]

Plumber mate did first, me and plumber mate did second one, he can’t understand issue changed shower mixer for me which made things a bit better for a while , my only thought is the mixer is scaled up and not “calling” for hot water.

 

[Riley]

Is he gas safe first off. If you can’t suss it out I’d suggest Worcester’s fixed price repair.

 

[Mousemarty]

He is

 

[Riley]

Well I’m sure you can appreciate we don’t give DIY boiler advice to non gas safe engineers. If he’s struggling get him to register on here and we’ll lend him a hand

 

[Harvest Fields]

Can I have a picture of your boiler mate please. Just the front will be fine.

 

[Mousemarty]

Here you go

 

[Harvest Fields]

Yep. You need to leave the case on and not mess with it mate. If your mate is gas safe. Get him to join here and pm @Harvest Fields @ShaunCorbs or @Riley with his gas safe number.

 

[Mousemarty]

I’ll see if he will he’s not into tech

 

[Riley]

Ha ha and yet he’ll work on modern combis go figure

 

[Mousemarty]

I know go figure sparky mate is the same... wires in 3phase but can’t send an email...

 

[sammathias]

Never had to replace a plate hex on that boiler and had your problem countless times. Such an easy boiler to clean both hex on. As above tho can't comment on how unfortunately

 

[Mousemarty]

Just to clarify it’s not the heat exchanger in the actuall boiler it’s the one at the bottom at the back dhw? I think .. apparently they scale up in hard water areas really quick

 

[Harvest Fields]

Just to clarify it’s not the heat exchanger in the actuall boiler it’s the one at the bottom at the back dhw? I think .. apparently they scale up in hard water areas really quick

Yep. And just to clarify you had to take the case off to get to the plate heat exchanger. This means you have to be gas safe registered mate.

 

[sammathias]

Just to clarify it’s not the heat exchanger in the actuall boiler it’s the one at the bottom at the back dhw? I think .. apparently they scale up in hard water areas really quick

Yeh I know and both plate and main hex are easy to clean without even taking them out. Never had to change a plate hex on them boilers.

 

[Burger]

I’m thinking the issue is with your shower mate, if all others are ok. Could be the inlet filters if you live in a hard water area, it could also be a thermostatic valve replacement, or even a collapsed shower hose. As for the boiler, I’d leave it well alone unless GSR.