grundfos UPS 3 phase pump

[beesley121]

Hi guys,

does anyone know how i can test wether this pump is working or not?? i have a pump and im sure its not working as i cant feel it rotating. Ive opened up the bleed screw and it only dripped a little then stopped. I even took it completely out and would have thought water would have gushed out when the water in under 1.5 bar of pressure but it didnt. hardly got a drop

could it just be the terminal box with the speed controller in thats gone?? how do i test this?? or is it the motor its self?? how do i test this??

lso guys, should i need new motor, does the terminal box come with it?? or can you buy the terminl box seperate as im thing it may be just the terminal box and its workings that have gone.

any help appreciated guys

 

[Billy Bob Bob]

I even took it completely out and would have thought water would have gushed out when the water in under 1.5 bar of pressure but it didnt. hardly got a drop
did you turn the gate valves off,please elaborate

 

[shorticus]

I'm as confused as gas man and would also like to help.
Where is the pump, is it inside the boiler or airing cupboard?
Have you taken the head off or completely removed the pump?
And as gas man asked, have you touched the isolation valves?

 

[beesley121]

I even took it completely out and would have thought water would have gushed out when the water in under 1.5 bar of pressure but it didnt. hardly got a drop
did you turn the gate valves off,please elaborate

hi, thanx for the replies guys.

the gate valves have not been touched. this is a commerical pump. the problem we are having is that we seem to be only getting CH hot water on one side of the rads so its as if the rads are not returning to the boiler. the pump is a grundfos ups 65-180

 

[Billy Bob Bob]

if theres no water in there you either have a tank thats run dry,or a valve off some where

 

[quality]

I even took it completely out

I would like to assume that you competent to work in commercial premises

On 3 Phase equipment exceeding 400v >?

 

[Billy Bob Bob]

I would like to assume that you competent to work in commercial premises

On 3 Phase equipment exceeding 400v >?

are you talking to me or the op?i did not post that,asking the op a question

 

[quality]

No not you but the op

 

[Billy Bob Bob]

No not you but the op

ok mate no probs

 

[washer]

Ive seen those pumps in domestic premises, I know they dont last very long.

I would get a professional in, if the pump does need changing is not gonna be a cheap job anyway.