# Replacing 1.6 uF capacitor with a 2.0 uF one of the same style [closed]

I have a ceiling fan which uses a 1.6 uF capacitor. Now that the fan is not spinning, can I replace the capacitor with a 2.0 uF (same 450 vac) one which I have in hand?

I have several ceiling fans that no long work (either slow or not running at all). They look identical. I opened one and found a 2.0 uF capacitor in it. So, I bought several. I opened another fan and found it used a 1.6 uF capacitor. There are four other ceiling fans in the room that don't run at full speed. It is my guess that they all use 1.6 uF capacitor. Since I have more than 10 2.0 uF capacitors in hand, I wonder if I can use them to replace the failing capacitors.

The capacitor on the left is the one I intent to use to replace the one on the right, which is actually larger and heavier than the 2.0 uF one.

• Related question Commented Feb 27, 2018 at 14:28

Just look at the left hand side of the picture above. The phase shift is always 90 degrees at resonance. This would correspond to the AC frequency (50 or 60 Hz) of your incoming power. If you increased the capacitor from 1.6 uF to 2 uF, the resonant frequency drops by proportionately $\sqrt{\frac{1.6}{2.0}}$ or 89%.