Hi, found some related threads on this but nothing definitive, I have a 1 1/2 year old Jandy Stealth SHPF 1.5, 2 speed main pool pump (delivered from INYO Dec 2015) ran fine until the other day I tried to start it on high for backwash and it tripped out (buzzed then overload tripped it off for a while). After it cooled off and the thermal overload reset, it would start on low, then I was able to switch into high speed, ran all day. I have an Intermatic T106 2 spd timer (jumpered for low/high) wired into main Intermatic timer. Configuration has been working fine since installation Dec 2015. I initially suspected the start capacitor because once started on low, I can flip the timer into high and it will run all day no issue. But try to start from full stop to high it trips offs. Another web forum post I read had same issue and they replaced the capacitors without resolution but still has me thinking either start capacitor is weak or could it be a centrifugal switch issue?