My 2 year old 1.5hp 2speed pump has a strange problem. It will start on low but not on high. If I try to start it on high it just hums then pops the thermal protection. Starts fine on low and runs on high just fine as long as it is already running. Suspected start capacitor, swapped it out to no avail. Any thing else I can look at before I spring for a new motor? Is there a start switch in the rear? Stinks that my 2 year old motor might be bad.
Thanks in advance