As I was walking by my pump yesterday, I noticed it had just stopped and a few seconds later it started back up again. I had noticed this once before about a year ago. I'm assuming this is happening more regulary than once a year as the only time I would notice is if I was right next to the unit. Any ideas? I'm not sure of a way to monitor this but if there is an issue with the pump or other item in the system I would like to catch it while it is under warranty.