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Just a final update on this job. Fitted the new expansion vessel today from local supplier. All working now. Thanks for the replies chaps. Dave

The drama contiunes: Just noticed leaking water from the bottom of the expansion vessel. I think I'll order a new one and a pipe to go with it.

Hi and thanks for the reply, I checked the pressures when the boiler was cold and the gauge showing very low, filled the system via the loop then pumped up the vessel but like you say, incorrect order although no water came out of the valve on the vessel. The PRV is dry so is the AAV...

Some more info: Got home tonight and after boiler being switched off all day and notice pressure had dropped very low. Topped it off to 1BAR and having read about tripping off on here, pressed the trip button under the control panel. Also checked the pressure in the expansion vessel...

A little bit more info. I operated the lever on the three way valve and the water went from cold to not-so-cold and the heating warmed slightly. I've read about the three way valve and flow valves but non the wiser. Cheers Dave

Hi all, This morning my Worcester heatslave 15/19 has decided not to work. The boiler started as normal but I have no hot water or heating. The central heating pump within the boiler is running and the pipework either side of the pump is hot but radiators are cold, the pressure gauge is...