Heating working but hot water is cold!

[Mez]

Can anyone give me any ideas as to why my 3year old Heatline c24/c28 has suddenly decided to stop heating water?! I had had a small drip from a pipe which I just thought was a loose fitting, could it be connected? Any ideas would be gratefully accepted!

 

[kevplumb]

whats the system pressure

 

[Mez]

Pressure is at 2bars

 

[kevplumb]

probably a stuck diverter valve

 

[bengasman]

Can anyone give me any ideas as to why my 3year old Heatline c24/c28 has suddenly decided to stop heating water?!

Could be that corrosion caused by a pour install has knackered the diverter or flow switch

I had had a small drip from a pipe which I just thought was a loose fitting, could it be connected?

Where is this pipe?

 

[Mez]

oooer! is that diy fixable?!

 

[Mez]

it seems to be the hot water pipe from inside the boiler.

 

[bengasman]

oooer! is that diy fixable?!

Depends how good you are with mechanical stuff and plumbing. It is not gas critical, so in principle there is no problem with diy.

 

[doitall]

2bar is too high, drop it down to 1.2-1.5bar cold

 

[bengasman]

it seems to be the hot water pipe from inside the boiler.

Flow, return or dhw?

 

[Mez]

will drop pressure down, thanks! According to the diagram in the book it's the DHW outlet - 15mm pipe.

 

[bengasman]

According to the diagram in the book it's the DHW outlet - 15mm pipe.

Probably failing iso valve or loose compression joint.

 

[Mez]

Well would you believe it, the problem seems to have righted itself! For some reason the hot water has just decided to work again! I'm a little suspicious that it's only a matter of time but hey ho, never look a gift horse in the mouth! Thanks so much to those of you who took the time to offer suggestions. I still have the drip but I can live with that for a while and I'll be able to look up spare part prices in the meantime. THANKYOU!