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Foxs Mercantile Foxs Mercantile is offline
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Default Motor start capacitor

On 10/27/2017 6:18 PM, M Philbrook wrote:
In article ,
says...

It's an old Sears garage door opener. The schematic shows a 50 ufd start
capacitor. What's in there now is 43-52 ufd. What I've found locall to
replace it is 53-64 ufd. Will that work?


YES
Those values are not critical for that application.

Right. A start capacitor has a minimum value at which it work work.
The ones that are critical are the run capacitors. And even then,
10-20% will usually work, 100% might, but the motor will run hot.

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