Hi can anyone help me!. I have ravenheat combi boiler RSF 84ET and i am having trouble with the water pressure on it. The water pressure has risen from 1 round about were it should be to nearly 4 which is way to high. How do i get it down again, i have bled my radiators but it just goes back up again the day after. Last week the water pressure dropped to under 1 WHY?. So i opened the valve to let more pressure in i know how to do that and got it to the right pressure, and as far as i know stopped the pressure at 1. So can anyone please tell me why this is happening the pressure dropping and then going up. It would be much appreciated. Sharon.
ravenheat combi boiler RSF 84ET
- Thread starter sharon7716
- Start date
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Its most likely you have not fully closed the filling valve!
It might also be leaking!
I have never heard of one but it could also be the heat exchanger leaking.
The only way to lower the pressure is to bleed the rads.
The PRV is probably leaking after opening to let the over pressure out!
Tony
It might also be leaking!
I have never heard of one but it could also be the heat exchanger leaking.
The only way to lower the pressure is to bleed the rads.
The PRV is probably leaking after opening to let the over pressure out!
Tony
Don't throw any money at it Sharon. Ravenheat boilers suck IMHO 
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Hi Dave Its Sharon, How do i drain a rad from underneath. Like you sain it would be a lot quicker and a lot less messier. Thanks Sharongas4you said:
look for some thing like this
http://www.screwfix.com/app/sfd/cat/pro.jsp?id=12232&ts=75138
chuck a hose on the spout and undo the doings on the top and jobs a good un so it is
(did any one see my jim macdonald impression I was very pleased with it so I was)
http://www.screwfix.com/app/sfd/cat/pro.jsp?id=12232&ts=75138
chuck a hose on the spout and undo the doings on the top and jobs a good un so it is
(did any one see my jim macdonald impression I was very pleased with it so I was)
I would never use a drain cock to lower the pressure!
The cowboys solder them in with the seal in place. When you try to open them they dont open and if they did they would not close again. You then have a very wet and messy black stain over the cream carpet!
Better to use the air vent in the bathroom if there are floor tiles you can wipe clean.
Tony
The cowboys solder them in with the seal in place. When you try to open them they dont open and if they did they would not close again. You then have a very wet and messy black stain over the cream carpet!
Better to use the air vent in the bathroom if there are floor tiles you can wipe clean.
Tony
Agile said:
Well that way you are there longer so you can charge more
Why are you draining from a drain cock without protection on the cream carpet anyway. I certainly wouldn't
IF seal IS damaged just replace whilst it is out.I refer the right honorable gentleman to my previous answer
You are sounding more like Softus!
Virtually all our visits are on a fixed price basis so I would not want to take too long.
Removing 1-2 li from a bleed screw in the bathroom would take just 2-3 minutes.
Opening a drain cock is likely to take 30-60 minutes if it goes wrong which it usually does for me. You are also risking damaging the carpets however carefully you try to cover them.
Of course if you are charging by the hour and have nothing else to do then obviously you are going to try to do things in the longest way possible.
A firm based in Pimlico removed the expansion vessel from a Bahama so they could take it away to the service station to repressurise it ( at £110 per hour plus vat ).
I would do it in situ with my foot pump ( operated by hand ).
Tony
Virtually all our visits are on a fixed price basis so I would not want to take too long.
Removing 1-2 li from a bleed screw in the bathroom would take just 2-3 minutes.
Opening a drain cock is likely to take 30-60 minutes if it goes wrong which it usually does for me. You are also risking damaging the carpets however carefully you try to cover them.
Of course if you are charging by the hour and have nothing else to do then obviously you are going to try to do things in the longest way possible.
A firm based in Pimlico removed the expansion vessel from a Bahama so they could take it away to the service station to repressurise it ( at £110 per hour plus vat ).
I would do it in situ with my foot pump ( operated by hand ).
Tony
Sharon
You could always reduce the pressure by twisting the pressure release valve (red plastic knob bottom right hand side of the boiler as you face it) which should empty to the o/s alot easier and quicker.
Pete
You could always reduce the pressure by twisting the pressure release valve (red plastic knob bottom right hand side of the boiler as you face it) which should empty to the o/s alot easier and quicker.
Pete
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