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I have an old Worcester 24i RSF that has worked fine for years. Hot water and heating workes fine. But recently we've had an issue where, when the heating is turned on, after about 20 mins to 1/2 an hour the boiler starts to make clicking noises and then ignition noises and then the gas will go...

Just to give you an update. Last week I drained the system completely. I then pressed the valve atop the Expansion Vessel to see how much water came out but there was nothing after a drop or two. Once the pressure was all gone from the vessel I used a Schrader removal tool to remove the...

many thanks. :)

I don't understand at what point you've told me something several times. I haven't attempted to recharge the EXV yet. I haven't touched the EXV since changing the PRV. Only to press the valve in to see if either air or water comes out the top. Water came out so this could either be...

I know the PRV won't fix it alone. But I also knew that the PRV had failed, i.e. wouldn't shut because of the constant drip and loss of pressure even when the CH was not on. I replaced the PRV because the system was losing pressure constantly. I can see now that the system will hold pressure...

We replaced the PRV because that was also faulty. It was always dripping even when the pressure was very low. That's why it was replaced. It now doesn't drip when the pressure is low. So I diagnosed that problem and solved it. Don't really know what you think I did wrong there? We didn't know...

Well the guide is one from here, so yes it explains it all apart from draining the condensation. The guide for this model says 0.5 bar for the expansion vessel.

I am a very competent person. :(

It is a very old boiler... 1994 I think. I will try recharging it first following the guide and go from there.

Hi, I have a Worcester 24i RSF combi boiler. Now the problem I have with the boiler is that I believe the expansion vessel has failed. I have tried replacing the PRV to no effect and now the pressure rises too much when the heating is on (up to 3bar) and drops to zero when the heating is off...