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Depends on how many pikies you have around by you. Would seriously consider running steel externally now where doing long external gas runs owing to the amount of metal thefts.

grundfoss state that this is a non prefered option and should only be done if there is a suitable means of venting air directly before the pump. The reason being that owing to the design of the pump body, air can become trapped. Ideally the feed/vent wants to be on a horizontal piece of...

3months? you must have had a good batch

really should spend longer reading posts. sorry you've already replenished gap. in which case your plumber needs to do some investigation into whats happening to the pressure and temperature of the water in the cylinder. your doing the right thing in getting the plumber back to do this for you.

could do with some details regarding the current system you have

instructions for replenishing airgap are on front of cylinder. fairly self explanatory.

cba to read all posts. megaflo doesn't use external vessel for exp. red vessels rpiamrily used for htg. would suggest is htg pressure that has been lost.

are you sure you've got a bird cage and not just a cap end?

sorry. haven't read all the posts. Pressing the reset button does not return the boiler to factory settings. If you change he display setting so that it stays on, it will tell you at least what mode the boiler is in. ie pre purge, ignition etc. (oops just notice boilerman2 had expanded on...

blocked return filter on blr? dependant on location of fill loop

firstly turn the display on in the user settings. then check that all the user settings are as they should be for your blr. turn on your controls so that they are calling for heat. what mode does your user control tell you that the boiler is in? Even if it doesn't help fix it, you can really...

well thats a first. something that I agree with tickly-t on. I'll be ranting about british gas and cc's next

most likey the diaphragm on the pressure differential has split or stretched according to the first lines of your description.

I have seen the light and shall now be answering all posts using only punctuation marks, numbers and the cyrillic alphabet

:?: :!:

she also takes a long time to get to the point. ermm so I've heard. ..

this post is f*ckin hilarious

don't like to say it but..... TOLD YOU SO!!

piped up back to front?

scaled up coil?