ohms resistance on a grundfos 15/60 pump?

[moogwai]

anyone know the expected ohms resistance on a grundfos 15/60 pump? I renewed a pcb on a glowworm ultimate as the board wasn't sending any voltage to the pump...had to go back today as same problem has returned! Am thinking there ay be a problem with the pump causing summat to blow on board

tar

 

[Aquazone]

Think on speed 3 it's around 180 ohms mate

 

[moogwai]

thanks mate, I think that answers it! I was only getting 3.9 ohms, pump change me thinks.

 

[gassafe]

There's plenty of pumps around, compare it to your one at home?

 

[bewsh]

About 160-180 ohms.
Using ohms law, 240v / 3.9ohms = 61 amps, which would most likely blow the board

 

[quality]

ohms law on inductive loads will not calculate like resistive loads