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Hi, We had a problem with our 8 year old Genus 27 MFFi some time back and, cut a long story short, got someone to tell us the bad news that we needed a new pressue vessel (it had other minor problems mainly with the wiring which were fixed). However the fitter has since ceased trading and the...

There is a pipe outside above the flue (overflow?) which is dripping slightly and it hasn't done this before. I take it this is the cause. How do I recharge the expansion vessel?

Sorry, the saga continues... The system is now losing water every day...so much so the safety device (?) is preventing the boiler from starting. If I add water upto 3 and run it for a few hours (CH) everything is fine but overnight it is dropping to 0. No visible leaks anywhere but then there...

Turns out he had disconnected a motorised valve which he didn't know existed. Took him two minutes to suss it...but took me an hour to take up newly fitted carpets and floorboards to find the valve to switch it to manual. Having said that it was worth adding that with only one thermostat the...

Appreciate the help...I agree (as a layman) that it appears the last engineer failed to reconnect something he disconnected. I'll try him again tomorrow and then get someone else in if he still doesn't answer..and then send him the bill. Thanks again.

I have already undone the screw and it dribbled and then tighted it up again. This was with it turned off...it that right?

You'll have to explain how...!

No, it's not rumbling but it must have been OK before the new diaphragm was fitted because the heating was fine. Any more ideas?

No worries. I know which bit is the pump but how do I check it is running?

There is a small trigger type switch on the opposite side of the bit that holds the diaphragm which moves when the hot tap is turned on and then springs back after. Is that the manual lever you mean? If it is is seems to be in the CH position already.

Strange one this...got a 7 year old Ariston 27 MFFI with a Landis digital timer unit and ext. thermostat. Hadn't had hot water for a while and the system was making a lot of screeching noises and then the timer stopped working other than the over-ride boost button which is the only way we could...