Boiler burping noise

[KnowledgeableMaratho]

Hi all,

I own a new built which got shipped with a Logic Combi ESP1 35, this has been fine for the first 6-8 Months, then started to make a bizarre noise when igniting.

The logic engineer came about and said it was an Ignition Explosion, due to too much gas supplied by the governor next the Gas meeter outside. The gas governor has been replaced by a brand new one and fitted, howevet the weird noise started to occur again and wonder if one day it will just blow up! Here are couple of videos that show the ignition fart once the hot water is activated at the tap:

Would you have any more opinion or ideas on this? Water pressure is 1.5 bar when idle and radiators have been bleed everywhere.

Thanks

P

 

[footprints]

Sounds more like the jumper (washer) on a stop cock somewhere (water hammer) or a valve in the boiler "fluttering " on its seat.
Slow gas ignition is more of a thump.
First thing I would try is adjusting the main stop cock up or down a bit. and see if the noise is louder anywhere else on the pipework.

 

[KnowledgeableMaratho]

Thanks for the hint! I had the boiler serviced today and the Engineer said that should be the Gas Valve in the boiler being faulty.

He measured the gas Mv's at the Meter and in the house and they are fine.

I'll see when the Ideal engineer comes, last time he wasn't helpful if fixing the issues.

 

[KnowledgeableMaratho]

This boiler issue has been a nightmare. Ideal's engineer, confirmed today that the gas valve had already been replaced on the last visit, so it was in place when I had the boiler last serviced.

He measured the gas pressure with a digital gauge, showing 28 mV at the boiler and sometimes up to 48 mV at the meter—very high, just like what I reported a year ago.


SGN came to check as well, using a water gauge, and found 27 mV at the meter (acceptable) but 65 mV on the gas main, which is high. Apparently, high pressures like this are common in new builds with IGTs. They even replaced the governor as a courtesy, though they didn’t see anything wrong with it.


Now it feels like a blame game: Ideal says water gauges are inaccurate, while SGN claims digital meters are unreliable. Meanwhile, I’m left with this issue and a boiler warranty that’s almost expired.

The SGN engineer mentioned that if the house pressure really were 27-28+ mV, there would be noticeable effects, like bigger flames on the gas hob. Not sure if that’s accurate, but I feel stuck in a loop with each company passing the blame.

Ideas?

 

[kidgreen61]

Seemes bizarre that gas supplier can't adjust meter governor to the standard 21mb (+or-2mb), I'd be complaining to them again if it were me.

 

[KnowledgeableMaratho]

Seemes bizarre that gas supplier can't adjust meter governor to the standard 21mb (+or-2mb), I'd be complaining to them again if it were me.

thanks, the issue is that SGN comes and sais it's fine. They now replaced the governor and the boiler is not farting any longer it seems.

 

[DP]

Seemes bizarre that gas supplier can't adjust meter governor to the standard 21mb (+or-2mb), I'd be complaining to them again if it were me.

Has nothing to do with the meter governor
Ideal gas valve cannot be adjusted. Most other makes are adjusted for proper combustion which removes that noise

 

[kidgreen61]

Has nothing to do with the meter governor
Ideal gas valve cannot be adjusted. Most other makes are adjusted for proper combustion which removes that noise

OP said earlier he was getting 28mb at boiler

 

[DP]

OP said earlier he was getting 28mb at boiler

Wonder if that is standing pressure which is no use.

 

[DP]

Seemes bizarre that gas supplier can't adjust meter governor to the standard 21mb (+or-2mb), I'd be complaining to them again if it were me.

Agree there too