110 V Motor Question

[Blackpool]

Hello everyone, I have a piece of 110V plant that is not working. The wire from plug to NVR had a partial cut (rectified). The NVR energises so assumed good. The motor has what looks like two capacitors (white and black). I am trying to run some basic checks on the windings (resistance) but wondered if the capacitors could corrupt the readings. I completely disconnected one (the black one) and I am showing low resistance on all fields. Could the white one be causing that? Or is the motor faulty? Could it be repaired? Image attached.

 

[Blackpool]

Could there even be a break in the 4-core cable?

That run of cable looks perfect. Its only just over 2 feet long and it securely clipped to the frame every 7 inches. So no real opportunity to break

I will test by checking the continuity of each wire from NVR output to terminal block.

I have a volt stick that glows when it detects power along a cable (and stops when there is a break) but it does not work on 110V

 

[Blackpool]

That run of cable looks perfect. Its only just over 2 feet long and it securely clipped to the frame every 7 inches. So no real opportunity to break

I will test by checking the continuity of each wire from NVR output to terminal block.

I have a volt stick that glows when it detects power along a cable (and stops when there is a break) but it does not work on 110V

I think you may have cracked the case Lucien !

Continuity across each pair of terminals on NVR when I press the button so NVR looks ok

BUT one wire (the grey one) has no continuity from NVR to white terminal block. The brown and black do. So even though the cable looks pristine there must be a break in the grey. The cable is fastened to the frame which is a fold down and fold up all in one u shaped handle and I suspect the frequent folding down (to gain access to grab handles for lifting .. it weighs 50kg ... you cannot lift by the handle there are special grabs) and then folding up to use the plant (or storage) must have weakened the grey wire and its broken.

Will replace the cable tomorrow and update you.

Thanks you ever so much for all your help Lucien. Much appreciated.

Next job is my 240V washing machine motor (which is not running or even offering) So I may well be back on here within the week after I have done some basic tests ...

 

[Lucien Nunes]

Result! So you had line continuity from the NVR to the motor feed and a return to hold the coil on, but no neutral reaching the motor itself. At least it's a much easier / cheaper repair than something deep inside the motor.

Hopefully the washing machine will yield to similar investigation presently...