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Hi, I have a gloworm swiftflow 80 that was blowing water outside and the pressure was dropping ( when the heating has been on ). I have had a new pressure release valve fitted and although there is no longer water going outside it is still dropping pressure. Typical readings are - set...

Hi, I have a radiator that has just started to not get hot, tried setting trv to max but still same. Gets hot maybe 20% of time, took cover off trv and pin is in up position and moves up and down ok with quite firm press. Any help appreciated