PRV let by Calefi 6 months old

[Boilerfix]

Hello all. I have a calefi multibloc . The PRV is letting by. Only installed 6 months ago by another firm. This was the second replacement in 18 months. Any ideas as to why?
I don’t want to replace it if another fix is possible
I do have my unvented but usually just do installs.
Thank you in advance. Boilerfix

 

[centralheatking]

Is it a pressure reducing valve or pressure relief valve. centralheatking

 

[Scott_D]

is the EV big enough and pressurised?

 

[townfanjon]

Take it off the multi bloc and just check theres no **** under the diaphragm.

 

[SJB060685]

If it's the pressure relief that's letting by then as townfanjon says check theres no crap inside. If that's ok then theres other possibilities.

 

[moonlight]

Boilerfix shouldn't be taking this apart as they already says they do not have an unvented ticket.

 

[centralheatking]

Hello all. I have a calefi multibloc . The PRV is letting by. Only installed 6 months ago by another firm. This was the second replacement in 18 months. Any ideas as to why?
I don’t want to replace it if another fix is possible
I do have my unvented but usually just do installs.
Thank you in advance. Boilerfix

regardless of which prv this is most units have an orientation specified by the manufacturer, some very specific and others more flexible its mainly due to debris from the cold main or system
centralheatking

 

[Stigster]

Boilerfix shouldn't be taking this apart as they already says they do not have an unvented ticket.

They say the DO have their unvented ticket.

 

[moonlight]

They say the DO have their unvented ticket.

Didn't read properly. Sorry. 😳🙄

 

[Boilerfix]

Is it a pressure reducing valve or pressure relief valve. centralheatking

It was the PRV on the multibloc. Resolved now. I had assumed the previous engineer had checked the expansion vessel. Silly me, it was as flat as a pancake. Recharged no problem and replace PRV which after several weeks of letting by was knackered
Thanks for responding.