Baxi pressure drop

[Briern]

after a whole week of having to re pressurize my Baxi combi duo tec every 45 minutes! It has suddenly stayed on for two days now... help what is happening?:confused5:

 

[Darren Jackson]

Filling loop not disconnected when pressurized, letting by and causing the prv to open. Or you're over pressurizing and causing the prv to open which then sticks and doesn't seal back up. Or leak somewhere on system or boiler Or faulty/flat expansion vessel. Or faulty prv. You need a gsr engineer to check it out for you.

 

[king of pipes]

You need a gse bud