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my air con is working or so it seems but is not blowing cold air. It turns on fine and the revs dip and all that but I think it may have a blockage.It was originally over filled when i got it and I drained out the gas and re-gassed it but it hasn't helped so I'm assuming now that it must be a...

HAVE REPRESSURISED THE EX VESSEL AS INSTRUCTED BUT THE PRESSURE STILL RISES WHEN THE HEATING COMES ON.IT'S NOT THE FILLING LOOP AS IT'S NOT RISISNG WHEN THE HEATING IS NOT ON OR ONLY TH HW IS ON. DAMO.

Same old problem with POTTERTON PUMA 80 e.THE PRESSURE BUILDS UP ONCE THE HEATING COMES ON AND KEEPS RISING TILL THE PRESSURE VALVE RELIEVES IT. ANY COMMENTS WELCOME!! :twisted:

POTTERTON PUMA 80e. PRESSURE KEEPS RISING AND NEEDS TO BE SHUT DOWN BEFORE THE PRV GOES. I HAVE NOW CHECKED THE EXPANSION VESSEL AND HAVE RE-PRESSURISED IT TO 0.9 bar but this seem to be insufficient.It has made a difference though and the pressure is not rising as fast as it was.It is almost...

I left the PRV open when doing the expansion vessel and I cut off the two cocks as instructed by ACOperson. I think i did it right.Ant suggestions?

POTTERTON PUMA 80E ABOOUT 7 YEARS OLD. I HAVE JUST REPLACED THE PRESSURE RELEIF VAVLE BUT NOW THE PRESSURE SEEMS TO CLIMB STEADILY UNTIL I HAVE HAD TO SWITCH IT OFF.WOULD IT BE THE CH WATER PRESURE SWITCH AND WHERE IS IT? :oops:

MY BOILER IS LOSING PRESSURE CONSTANTLY.IT KEEPS DROPPING AND THE LOW PRESSURE LIGHT COMES ON.IT TOPS UP FINE AND WORKS FOR ABOUT 2 OR 3 HOURS BUT SLOWLY LEAKS AWAY AGAIN THROUGH THE OUTLET.ANY HELP IS WELL APPRECIATED!!!THANKS!!! _______________________ lynda moderator Please note frum rule 6