Saunier Duval F35E Low water pressure

George78 · 10 Feb 2009

Hi there,

I have a Saunier Duval F35E isofast condens boiler

The problem started a few weeks ago when the pressure dropped in the system. I tried to re pressurize it as you would normally but water started pouring out of the reduced pressure zone valve. Eventually I managed to get the pressure back up to around 1.0 bar but as the valve was leaking I replaced it.

Now I can't get the system pressure to go above 0.8 bar. When I turn the filling loop valve on to re pressurize it nothing happens??

I have checked and double checked all valves that I had closed off and they are all open.

If anyone has had the same problems or has any ideas on what the problem could be I would be greatful.

Thanks

George

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Saunier Duval F35E Low water pressure

George78

DIYnot Local

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