Polaris 280 Booster pump runs for 20 minutes then shuts down

Janhillatx

Silver Supporter
Jun 11, 2017
119
Cedar creek tx
Pool Size
18000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Hayward Aqua Rite Pro (T-15)
I feel like thermal protection is triggered it will not immediately restart when I toggle the switch. After the motor cools the Polaris will run again. I took the cleaner apart and did not find any restrictions or bad parts.

The pump motor sounds normal. I do not see any signs of leaks.

The booster pump was placed in 2016. Three years of use on a pump that’s used 2 hours per day seems excessive to me.

What’s the first couple of things you would check? Thank you
 
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