On 06/09/2017 13:14, Jamie Downham wrote:
replying to pp, Jamie Downham wrote:
Im also getting an E125 from this unstable beast of a boiler...

When I run the hot tap, the temperature rockets to 99, the pressure needle
leaps towards the red and then it cuts out and starts flicking the E125s
until
it's reset.

Have you checked the pressure in the expansion vessel?

http://wiki.diyfaq.org.uk/index.php/..._do_I_check.3F



--
Cheers,

John.

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