Just moved into a 15 year old home in TN. Ran whirlpool tub (regular fiberglass) bathtub last night and all worked fine, until I tried to turn the pump off. It wouldn't turn off with the in tub switch. I tried it multiple times. Finally got out of the tub, looked under through access panels. I unplugged the pump from it's NON-GFCI receptacle. I plugged it back in and the pump started again. I waited about 2 hours and plugged it back in. The pump worked as it should, turning on and off with the switch in the tub.
1- Can I just install a GFCI plug, or does it need a circuit breaker.
2- Can anyone explain the wierd pump action, and what to do about it.