Downstairs system breaker was tripped for heat pump. I reset the breaker and ran the system. It didn’t trip again. The main problem was the upstairs thermostat being blank. Found the emergency drain pan full of water.. Removed water and tested the system. Pump seems to be working. System has a 22° temperature difference. It’s possible that the pump float got hung up somehow or that the power surge that happened the other night may have caused an issue. I tried to look inside the return base box to see if there was water in there. I didn’t see any water in it. If it happens again, we may have to replace the pump or look further on where the water is coming from.