Polaris booster pump problem

[Oclat]

Thanks Carl

[mas985]

could be the cause of the pump shutting off, then starting back up after a period of being off.

Normally that is caused by the thermal limiter switch turning off the motor when it gets too hot and then when it cools down, it will turn it back on again. Usually a motor will over heat when a bearing goes bad or there is something stuck in the impeller chamber. But given the booster is after the filter, it is probably a bad bearing. Does it make any noise?

[Oclat]

I have not heard any noise, other than the sound of it running. It is only 6 months old as the other one lasted 10 years.

[Oclat]

Problem solved. Increased the flow @ Polaris so it moves thru the water faster. Evidently, the restriction/ flow was causing the pump's thermal limiter to get too hot.

[Watermom]

Thanks for the update. It may be useful to somebody else someday who has the same type of problem.