Boiler issue - Its that time of year again

shellyb73

HI All,

I previously had issues with pressure dropping on a glow worm 18si boiler, we had the prv replaced and all seemed well, the boiler is regularly serviced but this week, more problems.

We turned back on the rads using the lever in the hot press as I had all the trv's set on the rads. I decided the other day it wasn't cold enough for the bedroom rads to be on and switched them off using the lever in the hotpress, I turned back on other evening and yesterday pressure dropped to 0.6bar. I repressurised the system to 1.2bar, checked the pipe out the side of house and there was water dripping from it. When the heating clicked off the pressure was at 1.5 and gradually fell back to 0.8, that held overnight and the heat came on a 6.00am for an hour. at lunchtime the pressure gauge read 0.8bar but by 3.00pm its dropped to 0.6. Checked the pipe outside and a drip sitting in it.
I have the boiler booked for service next week, is this going to cost me a fortune?????

I have always got the best advise from you all here,
Thanks in advance,
Shellyb

Joey the lips

It depends. It sounds like the safety valve has gone and it will need to be established as to why.

Why are you leaving it till its serviced. I would get it fixed now.

Just check your service chap is registered.

www.rgii.ie

shellyb73

Joey the lips wrote: »

It depends. It sounds like the safety valve has gone and it will need to be established as to why.

Why are you leaving it till its serviced. I would get it fixed now.

Just check your service chap is registered.

www.rgii.ie

Yeah he is registered with rgii. Why do you say not to leave it will it cause much damage? I cant get this guy until Tuesday

Joey the lips

shellyb73 wrote: »

Yeah he is registered with rgii. Why do you say not to leave it will it cause much damage? I cant get this guy until Tuesday

Because your heating will go off if it has not already and your water wont heat if your relying on gas to heat it...

shellyb73

Thanks, He is coming on Thursday now.

goat2

i have a boiler that is 18 yrs old it is oil fired, has been used constantly, i think my heating is not as it was, is it time to say bye bye to the boiler and buy a new one

JohnnieK

It has certainly served you well:D:D. It all depends. Was your heating system looked after well or was it left to it's own devises over the years? What gives you the opinion it's not what it used to be? A few more details would be nice.

goat2

JohnnieK wrote: »

It has certainly served you well:D:D. It all depends. Was your heating system looked after well or was it left to it's own devises over the years? What gives you the opinion it's not what it used to be? A few more details would be nice.

it is a firebird, it was serviced about every second year, i just find that the heat and hot water is not as good as it used to be, i have bled the radiators, it has one of those red ball expansion tanks that sits near boiler, i do think it has lost its power, and it is a waste of money,

JohnnieK

Has your heating system ever been cleaned (I mean powerflushed not someone putting a hose on to it) It's possible that's all it needs.

goat2

JohnnieK wrote: »

Has your heating system ever been cleaned (I mean powerflushed not someone putting a hose on to it) It's possible that's all it needs.

no, is that a big job

JohnnieK

It's not a big job, just time consuming. It involves putting a machine onto your system and chemically cleaning it. It removes scale and sludge and restores your system to near new.

goat2

JohnnieK wrote: »

It's not a big job, just time consuming. It involves putting a machine onto your system and chemically cleaning it. It removes scale and sludge and restores your system to near new.

thanks, i guess i will have to get someone to do the job, also the expansion tank is one of those red things that look like a ball

shellyb73

JohnnieK wrote: »

Has your heating system ever been cleaned (I mean powerflushed not someone putting a hose on to it) It's possible that's all it needs.

Yes had that done in 2009 when all this trouble started

goat2

all the downstairs radiators are warm at top but cold at bottom, we are also thinking of replacing the sitting room dining,kitchen and bathroom radiators, so which radiators have the better output

shellyb73

Thanks to everyone for your help on this one!

New boiler in, upgraded heating controls so please God won't have to post about this again