prisma combi?

if you found water from expansion vessel it needs a replacement vessel

John Thompson Heating
March 2007

IS THE 1 BAR PRESSURE ON THE CLOCK GAUGE ON THE BOILER OR THE GAUGE ON THE FOOTPUMP ALSO DOES THE SYSTEM HAVE TO BE DRAINED OR JUST TAKE ENOUGH OUT SO CLOCK GAUGE ON BOILER READS NOUGHT ; I FOUND VALVE IT IS AT THE FRONT ON THE TOP IT HAD WATER SEEPING OUT

PETER@norman76.fsnet.co.uk
December 2006

The expansion vessel can be found on the rear of the appliance, the bit closest to the wall...

I believe (If memory serves me correct) you can find the schraeder valve in the top left hand side of the appliance.

It should be 1Bar with the boiler empty of water.

GasAid.co.uk
December 2006