replacing a run capacitor. Old one reads 370v 5.0 mfd +-10%. I can't find any with the +-10% to replace it.
Does the % matter?

This is going on a heater for a hot tub.
Thanks,
Gabe

 

replacing a run capacitor. Old one reads 370v 5.0 mfd +-10%. I can't find any with the +-10% to replace it.
Does the % matter?

This is going on a heater for a hot tub.
Thanks,
Gabe

I would think this would work.
http://www.amazon.com/Mars-Motors-12905-370VAC-Capacitor/dp/B002SBDER0

 

The tolerance does matter. If you are able to find a tolerance that is 10% +/- or lower (i.e, 5% +/-), the cap will work, however, keep in mind that if the tolerance is exceeded, this could effect the motor in a bad way. If you go below the tolerance, the motor windings have the potential to draw too much current. If you go above the tolerance, the motor windings will not receive enough current. Obviously, sticking with the same specs as original is always the safest bet, but be sure not to exceed the voltage limits and original tolerance level of the original capacitor.

 

Did some searching. Here is a link to the exact specifications. The size (oval) may be an issue, but if so, you should be able to locate a round cap with the same specs. http://www.ebay.com/itm/like/331486636189?lpid=82&chn=ps