Derek Cole shows how to test compressor and fan capacitors with a meter. The compressor capacitor rated 4-5 measured about 4, and the fan capacitor rated 5 measured 4.5, both within acceptable range.
Derek Cole
2025-02-18
Rated 4–5 µF (reportedly measuring about 4 µF)
Rated 5 µF (measured about 4.5 µF, within a 5% tolerance)
Helps the compressor in the startup cycle to make sure it starts and use, you know, it extend the life of the compressor. So at this point, I'm going to check the capacitor to see the condition and the ratings on it right now. So this is rated 4 to 5 and I'm getting 4 to 4. So that's telling me that the capacitor on the compressor side is still good. On the fan side, it's rated 5 and I'm getting 4.5. So it's still within that 5% range. So this capacitor is considered okay.
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