G'day

 

I just had a solar fountain pump repaired and it's been returned without its original MC4 connectors   -  just Light Blue and Gray electric cable wires.

 

Appreciate which of these wires is +ve????? (it's made in China...)

 

Tks! 

Anybodys guess to be honest.

 

At least you only have two choices.

 

Hook it up, if it runs and pumps you got it right, if it doesn't run or runs and doesn't pump you got it wrong, it may not matter either way.

 

 

 

1 hour ago, Crossy said:

Anybodys guess to be honest.

 

At least you only have two choices.

 

Hook it up, if it runs and pumps you got it right, if it doesn't run or runs and doesn't pump you got it wrong, it may not matter either way.

 

 

 

Thanks Crossie

 

I managed to find the Manual which advises if the Polarity "is not correct,  the pump will spin in the opposite direction as it should.  Water will still pump out but not to the rated capacity.  ........ To obtain the correct polarity, connect the BROWN wire to the +ve side".  Very useful given there is no Brown wire (only Light Blue and Grey".

 

I'll get the Boss to call the repairers (bet they can't help much either....)

 

BRs

Successful Conclusion!

 

Repairers advised the Light Blue is the -ve  -  call me Thomas, but I doubted that up until I connected the pump earlier in the week.

 

Now working - good as new (hopefully):

*  Grey is +ve

*  Light Blue is -ve

On 12/3/2024 at 7:41 AM, dinga said:

Successful Conclusion!

 

Repairers advised the Light Blue is the -ve  -  call me Thomas, but I doubted that up until I connected the pump earlier in the week.

 

Now working - good as new (hopefully):

*  Grey is +ve

*  Light Blue is -ve

PS  Confirmed by multimeter!