I have a ceiling fan that is running slowly. I suspect it's the capacitor at fault. I don't see any bulging, but the fan spins for all three settings of the pull chain switch.


I have two more identical fans in other rooms in my house. I swapped out the switch housing assembly (the part with the switches, wires, and capacitor) from one of those, and the fan runs fine.


Is there a name for the block capacitor packages that have multiple capacitors inside of them? Some term that I can google?

I have been able to find block capacitors with three 5μF250v capacitors inside ... can I use this, or do I need to replace the 5μF300v capacitor with another 5μF300v capacitor ? I thought the fan is running at 120V, where is the 300V coming from? I don't see any kind of transformer.

If not, where should I look to find a suitable replacements capacitor? I contacted the manufacturer (Hunter), but they were no help. The only offered me a discount on the purchase of a new fan.

enter image description here

  • 2
    Look for ceiling fan starter capacitor. Sep 16, 2016 at 16:17

1 Answer 1


I do not know why hunter has chosen a 300v for one leg when most other CBB61 5 wires are 250v on all three legs. Inductive surge/kickback on one speed versus the other two is all I can suspect.
I did notice that for hunter fans they sell a two piece unit for replacement listings. The photo looks like one cap is 300v value and the other is dual 250v.

hunter replacement

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.