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Matt, Your mail crossed with me ordering this http://preview.tinyurl.com/mrxvd25 , which I'm assured by Mr Parker of Parker Pumps Ltd will fit, has 5y Warranty, and be here asap.. The wilo looks a quality product.. perhaps I should have waited. Thanks anyway. Have bunged everybody who helped...

Matt, Thanks! Sounds definitive. Ref my response to Andy above : "As far as I can see "Grundfos Multihead type G p/n 59506180" pumps aren't available any more...". Which pump do you think I should use as (an exact fit) replacement? Should I be checking anything else eg the electronics...

jackthom: Well spotted! - the pump body doesn't seem to overheat now. So: I've just switched the elec off, disconnected the wiring @pump and put an ohm meter across live and neutral. Result= 100ohm resistance. So, assuming I'm measuring the right thing, not open circuit right now. BUT, does the...

DanTheG: whenever I look it's not spinning. There is little, if any, noise from the pump since the system failed. DP: I'd call the capacitor suspect. How would you suggest testing it? Andy: Just tried to spin the pump manually with the large screwdriver (with system on and pwr confirmed @...

There is no tension. Anything else before reaching a conclusion?

I have. It doesn't.

Tony, Thanks! I thought I'd waded through the entire internet faq re this! Does this one say whether the pump is beyond repair?

Hi Dan, makes no real noise i can hear. Taking off the central screw cap while its pwred up and the cs is supposedly working shows no obvious movement. Is it supposed to spin most/all of the time or just occasionally?

can you give me some advice on what to do next please? seem to have a pump related problem. I've tried to include everything - still bound to have missed something! - so please ignore the verbiage if the answer's obvious. ----------- System is mainly 30y old. Gnd Floor: ideal...