Central TN, 36,000+gallons gunnite pool, 2 skimmers
I installed the ECM27CU variable speed motor two years ago and worked great for a little over a year. Since then it would start stop randomly. No Fault light was on and the screen would say "No Fault". I resolved it by first pressing Override again a few times fter it stopped. Then, I resorted to turning power off completely > then powering it up > switching from scheduled run or off-schedule to Override and it would run on Override as intended. This is the case for High Override (almost always my choice) or Low Speed Override. However, in the past few months, it stops much more frequently - particularly when I go from Step 2 or Step 3 of my schedule to High Speed Override. I observed that both the Power and Fault lights would be on and it would still say "No Fault" (!?) most of the times. My solution, again, was to turn power off (both on the motor as well as supply panel).
I pursued the troubleshooting routine in the manual (checked if it's overheated, cleaned area around motor, checked for any obstruction to the shaft, used compressed air to blow dust off the air grills) - all check ok - but the issue persists. I don't see any problem with the suction side or pressure side of the lines and filter, etc. I'm clueless and at wit's end. Anyone have this problem? I'd appreciate any ideas, pointers you may have. Thank you.