hi this is so hard for me to pinpoint my 1st pump which has 2 speeds and is also the circulation pump blows a fuse at random it's never at the same exact time under the same circumstances that's why it so hard for me to figure out. it sometimes works for a few days like 2 usually then sometimes 10 minutes before blowing fuse. the pump and motor is only like 2 years old any way to figure out what's going on and how to fix it ?