I posted about this before. Our pump will not work when it's cold. Once the sun comes around and warms up the equipment I can turn it on. This winter I started it before the sun went down and left it all night and it kept running but it won't do anything if I wait until it gets cold. It was in 40s last night. I'm summer we dont have any issues. What could be causing this. The lights occasionally flash i was reading there is an internal sensor at the motor. Could this be causing this? And is it fixable.