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No it didn't, but it has done in the past. All that happens now when I repressurise the vessel is that you can clearly hear water bubbling and gurgling. It seems that it has held ok until now where it has totally gone. The pressure managed to hold enough for the heating to come on this...

Will the ch and hw still work? Wouldn't that drop the pressure even more though?

I'm not sure what you mean? Is that to keep me ticking over in the meantime or for fitting the new ev?

In the meantime then until I get a new ev - to keep on top of the dropping pressure, do I just keep pumping the ev up to pressure or fill with water?

So drain it via a radiator rather than the drain point. I can see why it might take a while! I will go for a like for like as there is no room for an external one without moving around appliances and units... I did try and repressurise the ev when I removed it and air was just coming out of...

I know where the drain point is - is it the same thing - the only thing is it is in an awkward place (really close to the floor so can't get anything under it to catch the water. I don't have any pipe that will fit to it, any ideas?

Yes I have the manual which I printed off, and trying to use that as a guide but struggle sometimes to work out which parts are which when looking at the boiler and looking at the manual. I think I now need to make a decision of whether to go for like for like vessel or go for an external...

Thanks for that. You mention that I need to position it near to the return? What is the return? Someone mention that I should check the aav...what do I check? Also on the top of the boiler there is a gold part with a black plastic screw on the top. It has 10 bar written on it...

So is it as simple as putting a new one in? I know there could be 101 things that it could be, but with the expansion vessel knackered, will I need to change anything else or just a straight swap? Obviously if it still loses pressure it will be something else. I have had a quick look on the...

Thanks for that. But should water be in the expansion vessel itself? Because if not, the pipe that goes into vessel has the water coming out and surely that goes into the vessel? In the past water has leaked through the top of the expansion vessel, and it has also come through the valve...

Hi, I have a Heatslave 15/19 oil fired combi boiler. The boiler is slowly losing pressure...I am not sure where though. The pressure relief pipe that goes outside is dry. I have pumped air into the expansion vessel and when I do I can hear water bubbling and gurgling in the tank...

Well I think it is coming from the top/back end of the boiler which to me would be the opposite of the burner as that is at the bottom of the boiler towered the front? Sorry I don't seem to be describing it too well...

Thanks for that, I am getting mixed up though - I have a pump (which is positioned above the pressure gauge) which has a large screw in the middle (Bosch is the make) - this leads to a motorized diverting valve and also to the large part which has the 'Heatslave tank drain point'. Below the...

Hi, As above, I have a Heatslave 15/19 oil fired combi boiler. Regrettably, I had managed to let the oil tank get too low (the tank wasn't empty, there was roughly about 90 litres left in there, but it seems not enough to get the boiler working) but the tank has now been refilled, and I...