Mend Saunier Duval Convector Heaters

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saunier duval thermoclassic high pressure,,?

Hi,
Ive got a saunier duval thermoclassic f30e, and although at start up the pressure shows 1.4 bar after swithing the heating on for 15 mins the display instead of showing the temp ie 50 deg it shows a flashing display of 3.5 bar,,,,, whats gone wrong please???

Scrummydoo
August 2009

Saunier Duval Heating, Convector Heaters Saunier Duval High Pressure

expansion vessel is gone

a
September 2009

tried it but cant tell,,dont look like any waters in there not too much pressure either,, what pressure should be in there? also we have had a few power cuts and it popped the fuses in our alarm and combi I replaced both like for like but that was a few weeks ago,,, and this has just started,,, do u think there could be a link???? ps they were m/a fast blow fuses 125 m/a I think

scrummydoo (Dave)
September 2009

I will try it thanks pal,, really appreciated, will let you know how I get on

Dave
August 2009

expansion vessel is perforated. On it is a shreider valve like thats on a car tire . unscrew cap and release a small amount of air if water comes out, theres your problem. 99.9% sure without testing myself

Paul spiller -Chilli Heating
August 2009

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