PUMA 80

[ChrisR]

The red and blue taps have to be open. Even for hot water, otherwise the thing may overheat.
REMOVE the filling loop(silver braided) like it's supposed to be (but rarely is) and leave the boiler OFF, COLD, and see if the pressure rises. If it does you have a problem.

The pressure WILL rise when the boiler comes on because the water expands. There's a pressure vessel which should be half full of air to take up the extra water but Pumas are at an age where the PV will need its air putting back in. When the air's all gone (so it's full of water ) the pressure rockets when the boiler comes on.

 

[essence1010]

Hello, thanks for your informative and exact answer. Ive just phoned a lpumber to come and sort this out for me. I described the problem to me and said that hed charge £55 for coming out, which apparantly wasnt a "call out fee" but if he could fix in that time there would be no further charge. Could you give me a rough estimate about how much i would be cahrged for this job if it is the expansion vessel?

Cheers

Toby

 

[kevplumb]

it may only need repressurising (yes i know)

 

[essence1010]

and if it doesnt?

cheers

 

[kevplumb]

then you may need a new expansion vessel
dont have to be attached to the boiler tho which saves dragging it off the wall can go just about anywere on the system as long as its always got an open connection ie no valves beetween it and the boiler

now whare did i put thet dictoniary