120/230V Pool Pump Motor Starting Circuit Shuddering
120/230V Pool Pump Motor Starting Circuit Shuddering
(OP)
My pool pump motor blew the starting capacitor last week and I replaced the capacitor today with one of the same rating. The motor starts and runs fine under no load but once it starts to prime the water and take on load, the starter circuit starts cutting in and out. Any help would be appreciated.
See youtube video:
http://youtu.be/N3SOfhxiypI
See youtube video:
http://youtu.be/N3SOfhxiypI





RE: 120/230V Pool Pump Motor Starting Circuit Shuddering
It may also be possible to (re)adjust the centrifugal switch so it tolerates lower speed before switching in the capacitor.
Gunnar Englund
www.gke.org
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Half full - Half empty? I don't mind. It's what in it that counts.
RE: 120/230V Pool Pump Motor Starting Circuit Shuddering
RE: 120/230V Pool Pump Motor Starting Circuit Shuddering
Is there anything other than the load mechanically slowing or binding the motor? a bad bearing perhaps, if it's a bearing that would be a cheap fix. I don't think you want to run the motor slower than rated speed it's just not healthy.
Chuck
RE: 120/230V Pool Pump Motor Starting Circuit Shuddering
Just two thoughts come to mind either the run winding is not in the circuit or possibly the run capacitor (the capacitor that is under the cover on top of the motor) is bad. Checking the run capacitor would be the easiest to look at before sending in for repair.
If the run winding is open you might check to make sure that there is a circuit through both sides of the overload(the black device that should be above the switch/governor)
RE: 120/230V Pool Pump Motor Starting Circuit Shuddering
It sounds like excess flow or mechanical problems in the pump. A thrust bearing may have failed and is causing a drag when the pump starts working.
Bill
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"Why not the best?"
Jimmy Carter
RE: 120/230V Pool Pump Motor Starting Circuit Shuddering
RE: 120/230V Pool Pump Motor Starting Circuit Shuddering
start capacitor*Run capacitor