Boiler 4.5 years old. The pressure has started fluctuating from .5 when cold to 2.5 when hot. There are no signs of leaks anywhere. Is this a problem with the expansion vessel or possibly the pressure gauge?
Pressure fluctuation on Glow Worm Energysaver Combi 2
Mar 11, 2006
2 Replies
Dave pretended :
Most likely the pressure vessel. Have you checked the air pressure on the PV? No air would mean the pressure would rise as you describe.
Yes, See SealedCH FAQ.
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