Leaking at Thermostat on an Unvented Indirect Cylinder

[eXequitas]

I hope someone will be able to help.

This morning i found water all over the floor under the hot water cylinder and i traced the leak to one of the thermostats attached to the hot water cylinder.

I have contacted a plumber who i have used before who is pretty sure it is a cracked cylinder (he can't come to see it yet, he's waiting for a COVID test result) and the amount quoted is pretty steep (it needs solar connections as well).

Just wondering if it could be anything else...?

(First time posting, apologies if i have broken any rules.)

 

[ianmcd]

No you have not broken any rules, your pics dont actually show anything, most solar cylinders have 25 years warranty so you should be covered , more pics further out would be better

 

[eXequitas]

My plumber said the same thing about the 25 years warranty but unfortunately i didn't have it serviced for the first few years i had it (when i bought my new build flat) i have some service records from BG homecare for about 5 years. I will try and put a warranty claim in for it on monday. But i don't have much hope that they will uphold it.

My plumber has quoted me £1100 for a new cylinder and £600 for labour.

Guess what i am asking for is whether there could be something else wrong here that does not require a complete cylinder replacement. And if not, is this the kind of price range i should be expecting?

Thanks!

 

[ianmcd]

It looks like it has been leaking from the automatic air vent, that is all I can see, very simple job and no it wont be covered by the cylinder warranty

 

[eXequitas]

Sorry, i dont think i described the leak very well. i've circled where the leak is coming from. One of my previous pictures shows a water droplet on the very edge of it.

The automatice air vent has looked like this for a long time and even if it did leak in the past, its not leaking currently.

 

[terryplumb]

I can see one droplet of water on the bottom corner of the stat ,but it's impossible to tell from pics where it originates from.
Wipe a dry tissue around higher up and see if it's damp anywhere else.

 

[eXequitas]

It's coming from the joint between the thermostat and the metal tube that sticks out of the cylinder. Ive marked it on the next picture