I run my pump/filter 24/7 and I've noticed lately that the pump is very hot to touch. Should it be heating up like this or does this indicate an impending problem? A month or so ago the motor overheated and it shut off until it cooled down but has worked fine since then. I've also kept a tarp over it since then to minimize the heat of the sun on it. Should I be looking into the best place to buy a new motor and/or pump?

Thanks.