Easy question, broken coil?

[Eddm87]

hi all,
Got a quick one,
Sister in law has been told her coil in the cylinder has broken.
How can I prove this?

They don’t want to fork out for new cylinder unless they have to (they have had multiple faults on thier boiler which eventually got resolved)

Also, they had the cylinder drained and replaced the 3port valve a couple days ago, that’s when the overflow in loft started leaking, got a guy out who said the coil is gone...

So... how can I prove this?
Cheers

Edd

 

[Harvest Fields]

Was it the same guy that did all the work? Why did he drain the cylinder to fit a 3 port valve? Was he a heating engineer?

 

[Welder]

EDIT - CBA

 

[Harvest Fields]

Also mate. I thought that you had done a Plumbing course? You should know the answer to these questions.

 

[Best]

What sort of heating system have you?
Sealed system will drop in pressure.
Open vented system will have small feed & vent tank which will fill water in if higher than large cold tank

 

[king of pipes]

Discoloured hot water possibly cold water storage tank overflowing for no apparent reason. Kop

 

[Harvest Fields]

Discoloured hot water possibly cold water storage tank overflowing for no apparent reason. Kop

Not sure this is a real post. Apologies if it is though mate.

 

[townfanjon]

If one is suspected , to be 100% I would disconnect primaries and just do a pressure test

 

[Eddm87]

Cheers

Not sure what kind of engineer he was, assimehe is gas as was looking primarily at boiler in first instance. Yeah I have done a course, haven’t worked with cylinders much before though as I work in hospital maintenance (let the jokes begin!)

It’s a vented system, originally thought the best way may be to check the f and e level compared to the storage tank, however, if the 3pv is shut to the hot water, the tanks would level out. So surely need to test by opening the coil only, then checking out levels.
Just wondering for any quick and easy tips or obvious other faults it coulda been as not sure I trust this guy (came out 4 times before boiler was fixed) made a mint it’s the sister in law.
Pressure test would clear it up for sure tho.

Cheers
Edd

 

[chris watkins]

Is it the F&E that is overflowing ?
Does it do it all the time?
Where is the water coming from, if it is the E&F O/F?
Water finds its own level does it not? closing the 3PV on the flow doesn't stop it going back up the return!!
Should be able to work it out, without the need to pressure test it, but if the E&F is lower the the CWSC (which it should be) then draining the heating & disconnecting the the coil con's you should see the water leaking out.

 

[Welder]

Reduce level in f&e to literally just below overflow.
Isolate supply to cylinder. Open hw tap till it stops flowing. Close tap.
Turn off htg & hw.
Let all stabilise.
Deisolate supply to cylinder & leave.
If f&e overflow goes again coil is goosed

 

[Rob Foster]

We once went out for a meal with our neighbours. I sat next to Julie the neighbours wife. All through the meal I could smell plumbing and thought it was me, so asked wife later did I smell, answer no. So next day called round to tell Julies husband that their cylinder had a broken coil and Julie was bathing in central heating water and stank. He made a story up
and I replaced the cylinder
happy days. centralheatking

 

[chris watkins]

We once went out for a meal with our neighbours. I sat next to Julie the neighbours wife. All through the meal I could smell plumbing and thought it was me, so asked wife later did I smell, answer no. So next day called round to tell Julies husband that their cylinder had a broken coil and Julie was bathing in central heating water and stank. He made a story up
and I replaced the cylinder
happy days. centralheatking

Now that is my kind of girl !!!

 

[sammathias]

We once went out for a meal with our neighbours. I sat next to Julie the neighbours wife. All through the meal I could smell plumbing and thought it was me, so asked wife later did I smell, answer no. So next day called round to tell Julies husband that their cylinder had a broken coil and Julie was bathing in central heating water and stank. He made a story up
and I replaced the cylinder
happy days. centralheatking

Hahaha I've heard it all now.