hello,
just wondering if any of you guys could help me before I consider
calling the plumber.
Basically, when the hot water is turned on and the boiler activated, it
starts to shudder, firstly fairly quietly, but becoming louder and
louder. After about 5 to 10 seconds it reaching a climax, then stops.
If the water is kept running the shuddering starts again after a couple
of minutes. Im guessing this maybe something to do with the pressure?

Any suggestions would be greatly appreciated.

On 5 Jul 2006 08:52:16 -0700, wrote:

hello,
just wondering if any of you guys could help me before I consider
calling the plumber.
Basically, when the hot water is turned on and the boiler activated, it
starts to shudder, firstly fairly quietly, but becoming louder and
louder. After about 5 to 10 seconds it reaching a climax, then stops.
If the water is kept running the shuddering starts again after a couple
of minutes. Im guessing this maybe something to do with the pressure?

Any suggestions would be greatly appreciated.


Only guessing, but I think I had something similar when the radiators
came on. I was told to check the pressure gauge, which was at 0. This
had to show about 1.5 bar. and was adjusted by inserting a key under
the boiler.


Dave

On Wed, 05 Jul 2006 08:52:16 -0700, jon101.taylor wrote:

hello,
just wondering if any of you guys could help me before I consider
calling the plumber.
Basically, when the hot water is turned on and the boiler activated, it
starts to shudder, firstly fairly quietly, but becoming louder and
louder. After about 5 to 10 seconds it reaching a climax, then stops.
If the water is kept running the shuddering starts again after a couple
of minutes. Im guessing this maybe something to do with the pressure?

Any suggestions would be greatly appreciated.

Check system pressure (0.5-1.5 bar). This could be caused by a partially
failed pump. A failed pump would probably cause an over heat lockout.
It could be a stuck diverter valve (stuck in the radiator position)
together with all radiators shutoff (?TRVs).


--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at http://www.diyfaq.org.uk
Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html
Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html
Choosing a Boiler FAQ http://www.makewrite.demon.co.uk/BoilerChoice.html
Gas Fitting Standards Docs he http://www.makewrite.demon.co.uk/GasFittingStandards

wrote in message
oups.com...

just wondering if any of you guys could help me before I consider
calling the plumber.
Basically, when the hot water is turned on and the boiler activated, it
starts to shudder, firstly fairly quietly, but becoming louder and
louder. After about 5 to 10 seconds it reaching a climax, then stops.
If the water is kept running the shuddering starts again after a couple
of minutes. Im guessing this maybe something to do with the pressure?

Gosh, that sounds just like my old boiler.

Except she does normally takes a bit longer than 10 seconds...

Gonzo