My motor wont start. When it tries, it hums and eventually shuts off. I had a similar problem at the beginning of the season and ended up changing the run capacitor and the problem was solved. Pump/motor is a 1 1/2 StaRite. Motor is actually a A.O Smith. Motor seems to run hot. Couple questions... how long should a pump motor last? I run it 24/7 - April to October. How do you test a run capacitor? Any other troubleshooting ideas?