Hi guys any advise would be great on the following problem.
My current system, i have a Myson Apollo Fanfare Boiler, which is mounted in the kitchen, the pressure guage is above the boiler. Underneath the boiler in a cupboard, which holds an expansion tank, and a euroman pump.
There are 4 radiators in the flat, closest being the kitchen, next living room, then bathroom and finally the bedroom.
I noticed that the living room radiator was cold on top and hot on bottom, and the bathroom one was stone cold. Bedroom and kitchen were ok.
After speaking to some folk, they advised to bleed air out the two radiators. I heated up the system for 30 mins or so then I turned the CH off at power switch and proceed to do this. The living room radiator let air out then some water after short time, which was rougly what i was told would happen. I went to do the bathroom one and this seemed to just let air out for ages.
Checked pressure gauge noticed it was 0 bar, next to the expansion tank there is a black lever, which is between the mains water (so i take it the name for this is the drain cock) i opened this, then on the expansion tank i turned a cap round until i heard a sound like water, checked the pressure gauge and noticed the pressure rising, left it at 1.5 bar as per manual, i closed the drain cock and fully closed the cap on the expansion vessel (is that correct??)
Turned the heating on, after 20 mins the pressure neddle started going mental and the weird noises came from the boiler, it eventually shut down.
I assumed there was still air in the system, bleed the bathroom rad again, this time there was still a hiss of air and water continuelsly fired out, (like a water pistol) decied to let this drain all out until i was left with dribble, check all other radiators same sort of thing happend in the living room one, bedroom and kitchen ok. Refiled the tank and started heating, this time after 40 mins to 60 mins same thing happend noise from close to boiler like a hissing sound also water gurggling sound then pressure gauge needle goes mental, boiler shuts off.
Also if i run the heating for say only 20 mins, then turn off the pressure will drop to say just bellow 1 bar but stay steady there, then rise again to 1.5 ish bar when running.
Hot water seems to be ok, just hear that gurgling noise in the pipes next to boiler.
Phew that was long story, anyway my questions to all this are
Could there still be air in the system?
When i bleed the radiators, when i hear a hissing sound and water fired out (like water pistol) does this indicated trapped air or is this normal, I thought i should just dribble out?
should the cap on the expansion Vessel be fully closed or opened slightly?
Or could this be something entirely different?
Everything was working fine till i started this ahhhhh typical my luck.
Long story guys but any advise would be great,
Many thanks
My current system, i have a Myson Apollo Fanfare Boiler, which is mounted in the kitchen, the pressure guage is above the boiler. Underneath the boiler in a cupboard, which holds an expansion tank, and a euroman pump.
There are 4 radiators in the flat, closest being the kitchen, next living room, then bathroom and finally the bedroom.
I noticed that the living room radiator was cold on top and hot on bottom, and the bathroom one was stone cold. Bedroom and kitchen were ok.
After speaking to some folk, they advised to bleed air out the two radiators. I heated up the system for 30 mins or so then I turned the CH off at power switch and proceed to do this. The living room radiator let air out then some water after short time, which was rougly what i was told would happen. I went to do the bathroom one and this seemed to just let air out for ages.
Checked pressure gauge noticed it was 0 bar, next to the expansion tank there is a black lever, which is between the mains water (so i take it the name for this is the drain cock) i opened this, then on the expansion tank i turned a cap round until i heard a sound like water, checked the pressure gauge and noticed the pressure rising, left it at 1.5 bar as per manual, i closed the drain cock and fully closed the cap on the expansion vessel (is that correct??)
Turned the heating on, after 20 mins the pressure neddle started going mental and the weird noises came from the boiler, it eventually shut down.
I assumed there was still air in the system, bleed the bathroom rad again, this time there was still a hiss of air and water continuelsly fired out, (like a water pistol) decied to let this drain all out until i was left with dribble, check all other radiators same sort of thing happend in the living room one, bedroom and kitchen ok. Refiled the tank and started heating, this time after 40 mins to 60 mins same thing happend noise from close to boiler like a hissing sound also water gurggling sound then pressure gauge needle goes mental, boiler shuts off.
Also if i run the heating for say only 20 mins, then turn off the pressure will drop to say just bellow 1 bar but stay steady there, then rise again to 1.5 ish bar when running.
Hot water seems to be ok, just hear that gurgling noise in the pipes next to boiler.
Phew that was long story, anyway my questions to all this are
Could there still be air in the system?
When i bleed the radiators, when i hear a hissing sound and water fired out (like water pistol) does this indicated trapped air or is this normal, I thought i should just dribble out?
should the cap on the expansion Vessel be fully closed or opened slightly?
Or could this be something entirely different?
Everything was working fine till i started this ahhhhh typical my luck.
Long story guys but any advise would be great,
Many thanks
