I have a Polaris booster pump for a Polaris 280. The timer is set to start after the main pool pump and to turn off again before the main pool pump. Right now my approximate run time is about six hours. The booster pump has been shutting down in the middle of the rescheduled runtime, and then been seen to restart without any action, as if it were “resting“. I suspect it is overheating, and then after a cool down pump begins operation. Has anyone had this problem before and is it more likely that the problem is related to the timer or to the booster pump? The booster pump is probably about 15 years old and until recently not giving me any trouble whatsoever. Thanks in advance for any ideas that anybody might have.