Recent: How to recoil the starter spring - Champion R484TR?

Mend Plumbing

Mend D.I.Y, Plumbing
Find out how to mend it for free.

Ask Question
Mend D.I.Y, Plumbing
Click here to mend plumbing

Mend > Plumbing

Mend D.I.Y, Plumbing

Pressure variation?

When boiler cooles down the pressure drops all the way down, boiler wont start, once the water pressure is topped up, and the boiler starts as the temperature rises the pressurt goes through the roof?

Alex
January 2012
Alex .this is typical of a pressure / expansion vessel fault (The orange thingy) it will have a valve on it like a car tyre, it will have little or no air pressure in it, causing the system pressure to rise rapidly when system is on, which then vents through pressure relief valve losing water from the system. System cools down and the water contracts = loss of pressure. I take it that apart from low pressure everthing else appears to work ok ? A relative simple fix normally with a car tyre pump or bike pump with a gauge. Off line now whilst 1900hrs

Colin West Yorkshire
January 2012

Automatic Answer

We may have found other answers which could help you.

Click here for Boiler Drops Water

Mend D.I.Y, Plumbing
Click here to mend plumbing

How to mend ...

Find out how to mend just about anything howtomendit.com for free repair help, information and advice.
Mend D.I.Y, Plumbing
Click here to mend plumbing