I’ve got a 1hp pump on my system that experienced a sudden (1-2 hours) temperature fall of about 50 degrees down to 9F with high winds. The next morning I noticed the spa was drained and the system was frozen. Freeze protection kicks in at 33 degrees. I have no idea why this happened. After everything thawed I have tried to start the pump. It is causing the water in the debris basket to splash around but the pump always turns off before it is able to get a good flow of water from the pool. So, the pump sounds and appears to work, but not good enough to get the water circulating again.
suggestions for further troubleshooting?
suggestions for further troubleshooting?