No pressure on boiler ....any advice

denzil13

no pressure on combi boiler....any advice
i have noticed on my boiler tonight the low pressure light was flashing and its giving me no hot water or heating. i brought the pressure back up to 2 on my potterton boiler but within 10 mins it dropped back to 0, can anyone give me advice on what is wrong and what i can do.... from a very anxious lady

mopsey

Most likely a leak in the heating loop.

denzil13

thanks for that, could you repair it yourself and is it expensive to do?

Canucklehead

mopsey wrote: »

Most likely a leak in the heating loop.

Or more specifically go round all the rads and check the valves and any visible pipework for leaks or any sign of leaks such as scale.
Check the pressure relief pipe (15mm copper out through the wall) under the boiler.
Any water dripping out of the boiler? (silly question if the boiler is hanging on the wall with nothing around it, but if it's buried away in a cupboard or unit .........)
Halsteads are good at dumping water from the auto air vent out of the boiler case at the bottom left corner.
Happy hunting

Corgi Guy.

mopsey

Won't be cheap. Depends on how long it takes to find it. Have you noticed any wet patches on ceilings etc? Check all the radiator valves as they can seep although losing pressure inside 10 mins points to quite a leak.
It could be the pressure relief valve. Is any water coming out of the pipe outside sticking out of the wall behind the boiler.

denzil13

thank you guys well i am going to go now and check my radiators and the pipe for any wet signs, give me ten minutes or so and i will let you know so i can get more advice from yous

denzil13

hey guys i have found a leak its the radiator in the lounge behind this computer... how do i stop it?

Canucklehead

denzil13 wrote: »

hey guys i have found a leak its the radiator in the lounge behind this computer... how do i stop it?

I don't know I can't see it!!

Post a photo? I can tell you how much it will cost as well.;)

Corgi Guy.

mopsey

If it's coming from one of the nuts then try pinching it up with a pair of grips or an adjustable spanner although i would think it will need undoing completely and sorting out properly.
Try a pic.

mopsey

Not a pick. lol

denzil13

its looks like i bent the copper pipe on the radiator when i tried to put a cupboard in the wee space last night and did the damage, all i need to know know how do i isolate that radiator co i guess if did that then the pressure would return to normal on the boiler.. any ideas