Pentair Pump low speed not starting

jpash

0
Apr 29, 2016
3
kinston nc
I have a Pentair Superflo dual speed pump. The pump runs fine in high speed. It runs fine in low speed. It will start in high speed. When I try to start it in low speed, it just hums. I have replaced the capacitor on the top of the pump with a new one and I'm still having the same problem. Anybody have any advice. Is there a second capacitor inside of the motor? Help!
 
Welcome to the forum!

My guess would be corroded contacts on the centrifugal switch. How long have you had the pump?
 
Thread Status
Hello , This thread has been inactive for over 60 days. New postings here are unlikely to be seen or responded to by other members. For better visibility, consider Starting A New Thread.