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Why would the pump not bang and thump on the when the heating is on ? They are two different circuits but how does the primary circuit carry the airlock when the heating circuit doesnt ?

Sorry, Yes the central heating is working ... now! It starting heating then went into a standby mode so just left it and then heard gurgling from the living room radiator so I went around bleeding the radiators again and it began working again as normal

ok - just as well as that red valve would only be reachable with someone with the arms of Mr Tickle! I can feel a slot on the top side of the pump so Ill try to get a pic and confirm with you if that looks like a bleed point

Thanks Terry, Ive been bleeding the bleed point on the coil circuit but its absolute minimal air purging. How/where on the pump do I check for air - is there likely to be a bleed point? Incidentally above the pump in the pipework theres a wheeled valve that seems to ultimately like the flow and...

Hi, Hoping I can get some help here. Drained down the system today by closing the valve on the F&E Tank outlet to plumb in some new rads. When finished I opened the valve again but upon starting the boiler up and calling for HW on the primary circuit there became an increasingly violent...

Thanks Opps

Thanks Oops, Its in perfect condition just need to change the colour really so perhaps priming isnt necessary

If I could I would - they are practically welded on and won’t budge. Got around it in the end thankfully all up and running

Thank you all. Its a vented indirect system primary pumped - identical spec to whats been replaced. JohnD - its confusing but your explanation makes sense of the confusion. Ive removed the nuts off a 22mm compression joint and it screws on perfectly so I can only assume 22mm is right.

Can anyone assist please - The new cylinder has 22mm connectors for the top and coil flow and return. The current pipework is 28mm. Ideally I require a Compression Adapting Female connector that will screw into the tank on 22mm and adapt to 28mm to take the pipework. I cant seem to find this -...

A quick question - is there such a thing as a 22mm female to 28mm male compression joint ? The new hot water cylinder has 22mm for the flow and return coil but the existing pipework is 28mm ... another can of worms !

Thanks again, upon closer inspection the reason the pump is incorrect would be because the gap between the flue and the pump is insufficient so it wont let it rotate to the correct angle and rotating the opposite way wont let the door cupboard close .... definitely a poor install. I'll get it...

Many thanks for the info. Just trying to establish if aluminium needs to be treated differently ...

Thanks to you both for highlighting that issue, I will get that addressed quickly. The joys of moving home ....

That’s great, thanks for confirming the upgrade. How much is a replacement pcb approximately. Also is there a air lock bleed valve that I can’t find - I understand there’s an auto pressure release ? But in addition to that can I manually check for any air in the boiler system or is that one and...

Thanks ianmcd, Im uncertain of the history as I only bought the house a year ago. Ill take a pic of the panel with the light and upload that.

Hi Can anyone suggest a paint preferably a spray paint for a wall radiator which is aluminium? Also the process of priming if at all necessary? Thanks

I’m having the following issue with my boiler pump: after the hot water and heating “clock off” from their programmed stop times the pump randomly continues to run on. There is no pattern to this that I can establish sometimes it’s only the Hot Water sometimes only the central heating, sometimes...

Is a horizontal cylinder (indirect) as efficient as a standard vertical cylinder? No choice but to use use a horizontal but just asking the question to those who have experience .