Pullingguard
05-10-2014, 10:39 PM
I'm stumped. I have a 1hp Hayward super pump. I'm not sure how old as I just bought the house 2 years ago. When I opened the pool and went to start up the pump the motor hummed. I disassembled the pump and checked the motor with nothing connected and it stilled hummed. So I bought new motor and new seals. Installed the new motor and seals. The pump ran ok for a few minutes and then it would cycle on and off every 1 second. Disassembled the pump and motor to check everything. Everything looked fine but I ran the motor with nothing connected and it ran fine. So I reconnected it and the Same cycling problem happened again. So I disconnected the piping to check it again but first I ran the pump with no water for 15 seconds and it ran fine. The motor only cycles when the water is flowing through the pump. So I figured the motor was bad and had a replacement sent.
Reinstalled the new motor and I thought everything was ok. It ran for a hour as I vacuumed the pool bottom to waste on the sand filter. But when I shut the pump off to put it to sand filter to filter and started it back up, the pump motor started cycling again. I could get it to run for 30 minutes or so if I had both the skimmer suction valve and main drain suction valves 1/2 closed and the pump would run but it would eventually run hot and motor thermal overload would shut off.
So I'm about ready to just give up and buy a whole new pump and motor unless anyone has any suggestions.
Reinstalled the new motor and I thought everything was ok. It ran for a hour as I vacuumed the pool bottom to waste on the sand filter. But when I shut the pump off to put it to sand filter to filter and started it back up, the pump motor started cycling again. I could get it to run for 30 minutes or so if I had both the skimmer suction valve and main drain suction valves 1/2 closed and the pump would run but it would eventually run hot and motor thermal overload would shut off.
So I'm about ready to just give up and buy a whole new pump and motor unless anyone has any suggestions.