Dishwasher has Badcaps!

[capwizard]

Dishwasher has capsistor also, when I fix the leak of the input hose (pic 2) I found it has A motor start cap. at 23.5uf/250v (Parts No.W10334457)

Maytag PORTABLE DISHWASHER MODELS: MDC4809PAW1


Some single-phase AC electric motors require a "run capacitor" to energize the second-phase winding (auxiliary coil) to create a rotating magnetic field while the motor is running.

A motor capacitor, such as a start capacitor or run capacitor (including a dual run capacitor) is an electrical capacitor that alters the current to one or more windings of a single phase AC induction motor to create a rotating magnetic field.

Single Phase Induction Motor, How it works ?
https://www.youtube.com/watch?v=awrUxv7B-a8

Three Phases Induction Motor ?
https://www.youtube.com/watch?v=LtJoJBUSe28

Induction motor, 1 phase, manual start removing capacitor.
https://www.youtube.com/watch?v=GFUa7bjNsZk

What is main function of capacitor in single phase induction motor?
https://www.bayt.com/en/specialties/...duction-motor/


Do you know how many AC motor in your house?

[redwire]

Re: Dishwasher has Badcaps!

Hurray! they went back to using a start capacitor?
Maytag dishwashers I've fixed use a "starting relay", cheaper than a start capacitor.

Under high current motor load, the relay pulls in and connects the (wash or drain) start winding until motor current backs off.
Anyhow, the relay gets sticky or contacts fail.

A real bear to troubleshoot- if it's the motor or the starting relay or mechanical friction causing the motor to not startup.

[jiroy]

Re: Dishwasher has Badcaps!

It is the same basic that creates Earth poles , a rotating magnetic field in the Earth's core . The equivalent capacitor in Earth's core could be like in the high atmosphere's levels , approximately 1 Farad ...

Just to say Hi to the genuis wizard

[capwizard]

Re: Dishwasher has Badcaps!

Yes I bought this, Maytag Dishwasher, 3 years ago. when I junk some appliance I saw that (starting relay) I misunderstand it as A current limiter.