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Mend Glow-worm Combi Boiler Leak Pressure

I recently repaired a leak on a rad valve, ?

I recently repaired a leak on a rad valve, where some of the system was drained. The system is 0.7 bar cold and when fully operational it goes in the red, could there still be air in the system causing this. It's a combi boiler, glow worm, about 7 years old. Could you please advise me. Many thanks

JJ
January 2013
Glow-wormD.I.Y, PlumbingCombi Boiler Leak Pressure
also check u havent left any boiler valves closed

kash
January 2013
expanssion vessel needs inflating on the boiler. drain down the system, then get a car pump and inflate the tank to 1.5bar. its the red tank fitted to the rear of the boiler it has a car tyre type inflating valve fitted to it it will be on the top or bottom.

kash
January 2013

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Glow-worm Boiler Overpressure - Air in System?