sime boiler

brummieblue · 16 Oct 2004

My sime friendly format 80 e has 2 problems. It fails to ignite when it comes back on automatically, this I believe requires a new pcb, and when heating is on the 'overflow' constantly drips.The pressure gauge shows normal but is high when heating is on. Can anyone help please.

kevplumb · 16 Oct 2004

do a search on expansion vessel

ratonnastick · 16 Oct 2004

By the overflow i assume you mean the pressure relief valve (prv) on the boiler?

how high does the pressure go?

also your post is incomplete if the prv is letting water out you will lose pressure at some point and have to keep refilling the system is this the case?

brummieblue · 16 Oct 2004

yes I do have to top up occasionally, if the boiler is off, the pressure remains normal, however it rises above the top limit when heating is on. Thanks for responding.

kevplumb · 16 Oct 2004

you at the least need to recharge the vessel

brummieblue · 16 Oct 2004

how do you do that?

kevplumb · 16 Oct 2004

drain the boiler
look at the top of the boiler and if you see a car type valve get a tyre guage and check the pressure
should be between 1 and 1.5 bar
if not nick the kids bike pump and go for it
if you press the valve and get water out the membrain has gone
(its sat eve so has mine)

brummieblue · 17 Oct 2004

thanks for the help

Vade · 16 Nov 2004

Sounds like a new igniter pcb. Don't forget that the SIME has two pcb's

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sime boiler

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