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Mend Ravenheat Causing Pressure Boiler Turned Heating

WHAT IS CAUSING PRESSURE PROB ON RAVENHEAT CSI85 BOILER?

NOW THAT WEATHER IS COLDER I HAVE TURNED UP HEATING AND PRESSURE IS RISING OCCASIONALY TO THE POINT WHERE IT WEEPS OUT THE PRESSURE RELIEF VALVE CLOSE TO 3BAR.AFTER THIS IT OPERATES NORMALLY.COULD IT BE A STICKY PUMP? OR COULD SLUDGE IN THE SYSTEM BE CAUSING INTERMITTENT TROUBLE? OTHERWISE IT WORKS PERFECTLY WELL.

STEVIE
November 2008
RavenheatHeating, Home Heating SystemsCausing Pressure Boiler Turned Heating
sounds like your pressure vessel has gone, will need to drop pressure in system then charge to 1 bar using foot pump ect, if not charge bladder gone and whole unit will need replacing

jlkheating
November 2008

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