About 10 days ago, I noticed that my pump wasn't running. The breaker was tripped, and when I reset it, the motor hummed and then tripped the breaker again. I looked around on the internet (including here) and figured the capacitor was bad. I was able to turn the shaft by hand. Motor is 2hp made by US Motors, installed 3 years ago. I replaced the shaft seal a couple of months ago because I noticed I had a leak.
Ordered a new capacitor, same ratings as the old one (50 uF, 370VAC). installed it today, and the pump ran for a few hours and I though my problem was solved. I happened to be outside, and noticed that the motor was sounding different. It was making a somewhat high-pitched sound besides its usual sound. Then the breaker tripped again. Tried resetting the breaker, but the motor just hummed loudly then tripped the breaker again.
Could the replacement capacitor be a lemon? Anything else I could try before calling someone to make the necessary repairs for me? I was hoping to be able to do it myself, but may be in over my head.
Thanks in advance!