Comment on Help Fixing my Dishwasher - Part 2
dudesss@piefed.ca 1 week agoI’m not quiet sure how I would go about testing like that. And I never heard of working on a hot circuit.
I understand I could time the dishwasher and use that to help find what cycle it stops at.
iocase@lemmy.zip 1 week ago
AFAIK you would need a VFD or a custom built driver circuit to generate the frequency you need to operate it at which is the hard part.
Honestly though if it’s an permanent magnet synchronous AC motor (highly likely) you should be able to test it provided you had a Variac to lower mains voltage (or transformer with taps works too) although you would need to bring the input voltage waaay down.
Permanent magnet synchronous motors have a ratio of V/Hz you need to maintain, in this case we have 0.256 V/Hz.
To test at 60Hz the max I would start at would be 15.34V AC at 60Hz. Otherwise you draw too much current and risk cooking it.