Whilst trying to diagnose my hot water problem, wife screaming cos the shower keeps going cold! Found I had water in the expansion vessel which I realise is a bad thing! lol.
Would water in the vessel cause the DHW to cycle on and off?
What pressure should the new one be charged to and will it already be pressureised?
Read FAQ about changing it. Isolate heating from boiler, drain boiler and leave drain open. Fit new vessel and check pressure in it and adjust as required. Close drain. Refill sysytem.
Would it be worth completely draining the CH side of things as well or would this open up another can of worms?
Would water in the vessel cause the DHW to cycle on and off?
What pressure should the new one be charged to and will it already be pressureised?
Read FAQ about changing it. Isolate heating from boiler, drain boiler and leave drain open. Fit new vessel and check pressure in it and adjust as required. Close drain. Refill sysytem.
Would it be worth completely draining the CH side of things as well or would this open up another can of worms?