pressure not increasing from filling loop.

[hunterseye]

Hi Guys

Apologies if this has been covered already. I suspect it has.
A lady has asked me why when she tries to repressurise her combi through her filling loop, the pressure guage doesn't move. She has yet to tell me the name of the boiler, but i thought i'd ask you fellas for my own benifit really. she states the pilot light wouldn't come on to start with. She got that going but they still have no hot water etc. Obviously i know very little about gas and boilers hence me posting in here.

Could it be as simple as a faulty pressure gauge? or is this a common generic fault.

Cheers in advance.

ps i'm not working on the boiler, i was just curious as to what it could be. They do say knowledge is power.

 

[AWheating]

faulty pressure guage, faulty/blocked filling loop or NRV, leak on the system, prv open........... to name a few.

if when the loop is opend water can be heard moving then you can rule that out. its very common for pressure guages to not work properly.

 

[hunterseye]

Thanks AW. she did say she could here water running.

 

[AWheating]

sometimes a gentle tap or two on the pressure gauge can make it move to the correct pressure.

 

[glenno1]

Is she opening both taps on filling loop

 

[hunterseye]

Is she opening both taps on filling loop

yes glenno. I recommended to her to get someone GS to diagnose the fault. But it interested me as to what it could be.

 

[glenno1]

Have you checked prv termination point outside

 

[hunterseye]

Have you checked prv termination point outside

i've not seen the boiler glenno. And i don't think she would know to look for that. I will suggest it to her. While at the same time reiterating she needs someone qualified to diagnose the fault. Got to drum up some work for you gas safe boys

 

[acecharly]

If water can be heard going through the filling loop, it must be filling the system, after a short time the pressure guage will rise unless the guage is faulty or the system is passing/leaking. Id say the guage is probably not working otherwise there is a leak somewhere around the property or as glenno1 said the PRV is letting the pressure build up until it hits 3bar an is releasing water usually to a pipe that goes through the wall under the boiler, outside and just sticks out with a couple of bends back to the wall to stop scolding water flying everywhere.

 

[GrahamM]

Vokera Lineas fill loop are terrible for blocking up. You have strip loop out and clean.

 

[DirksPlumbing]

I would insist on a plumber to see this. It could be a burst pipe underneath the floor and the good lady starts filling her solum or underneath neighbours flat.

 

[hunterseye]

I would insist on a plumber to see this. It could be a burst pipe underneath the floor and the good lady starts filling her solum or underneath neighbours flat.

told her mate. She didn't reply. Something tells me she was after a good will gesture, but i posted on here as i wanted to know what you guys thought.