Dish washer board

[Behemot]

I got this dish washer board from a guy, it is supposedly acting strangely (like swapping programs and such). I haven't found anything bad, only thing which si closest to a problem I found is that big foil cap. It should be 1,5uF but has only 1 uF now and ESR of 6 ohms. Do you think swapping it is worth a shot?

[kc8adu]

Re: Dish washer board

couldnt hurt.they lose capacitance and esr rises after many breakdowns and self healing events.

[Behemot]

Re: Dish washer board

OK, cool, I'll just have to buy some smaller and add them in parallel as they don't have 1,5uF anywhere around...

[PeteS in CA]

Re: Dish washer board

Roederstein and possibly Iskra should have X-caps as high as 1.5uF (Roederstein has 2.2uF,IIRC).

[ben7]

Re: Dish washer board

Yes, the capacitor is definitely the problem. They use it instead of a transformer. It is used sort of how a resistor would work, but it doesn't waste much energy as heat. It's called capacitive-reactance ... Google it

[Behemot]

Re: Dish washer board

Yes, the capacitor is definitely the problem. They use it instead of a transformer. It is used sort of how a resistor would work, but it doesn't waste much energy as heat. It's called capacitive-reactance ... Google it

Yes, that's what I thought, just haven't been wize from the paths in there so I haven't said it loud . It's using the caps reactance value, just it does not burn the power rather than creates phase-variance...

Well it's not worth looking for ROE caps abroad if I can put in multiple smaller ones what will work just as good

ADD// OK so there was 1,6uF alltogether nominaly (that smaller blue 0,1uF cap is in parallel) so I used one 1uF I found here in my desoldered stuff and also 0,68uF one. That is 1,68uF nominal, 1,79uF measured, some 3,5 ohm ESR.

[Behemot]

Re: Dish washer board

Heard that dishwasher is running like charm…

[ben7]

Re: Dish washer board

Heard that dishwasher is running like charm…

Gr8!