I hope someone can guide me on this one.. I have a Polaris PB4 3/4 hp pump for the cleaner. It is 7 years old, so maybe it has already lived its lifespan. It worked great yesterday (first timethis year) and now it just hums for about 30 seconds then shuts off. It gets hot too. My pool guy happened to be here and opened up the back and said maybe the ? brushes were gone, don't know what that means, however, he did say to get a new motor and he would install it. I checked online and a new motor was around $150-$160 and I found a new PB4 for just under $200.
So, is it really the motor?
Should I try something else to trouble shoot it?
Should I just order a new one?