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Thanks guys...one question - if the pump's knackered, does it still continue to move when the power's on? I seem to recall something along those lines from other posts on the Forum...? :?

Hi guys... ...can anyone tell me what would be a suitable replacement for an old Grundfos UPS 18/60 pump/240v/50hz/2uf? ...having a problem with the circulation of hot water through my rads, and it looks as though that's the source of the problem... :?

Almost forgot to say, all rads are on the same level (1st floor of conversion flat), with expansion tank, pump and 3-way port upstairs in the loft...don't know if that makes any difference? Also, the water drained from the system is almost clear, which I guess rules out the sludge issue??

Hi guys... ...further to this, I've been away with work last couple of months, so not been able to pick up on this problem I've had - anyway, just got back this week, so thought I'd post an update - any help/info would be great... ...have refilled the system, and done the usual bleeding of...

Yes to both... ...I have been told by "various" that: a) there is an airlock in the return feed (if so, how do I get rid?) b) there is a blockage in the return feed pipe (if that's the case, why didn't the Fernox remove it and where would something that large come from/not shown itself...

Yes...did everything exactly as I did when I replaced the first three rads...

Hi to all, and hope your Christmas was warmer than mine... :( Have a problem, and hope you might be able to throw some light on things...have an Ideal Elan RS60 boiler in my flat, providing hw and ch to 6 rads in a 2-bed flat. No idea how old it is, but I've been here 5 years with no...