grundfos UPS 3 phase pump

[quality]

Mis-read the pump type, thought it was a 65-80, which i do come across on domestic premises, and in my opinion do not last that long, and are expensive.

Just as well i didnt start giving him electrical advise over the intenet, he might get himself a shock.

That is what forums are about is it not giving advice

experience is gained not learn t by reading internet posts

 

[beesley121]

Hi presuming you know how to use a multi meter.

First make sure it is electrically isolated the disconnect the 3 phase conductors.

then using you multi meter on the ohms setting test between Phases 1+2 then 1+3 then 2+3 the reading should be very similar give or take 1-2 ohms

if this is not the case then check for voltage after you have re-connected the conductors i.e. 440 between phases and 230 between each phase and earth

thanx for the info mate, its all sorted now

did test ech phase and found 2 of the 3 phases were down. The mcb were wired into somekind of protector and 2 lights on the front of them were red, 1 was green. this was replaced and hey presto, all working again. thanx again mate