What does your pump basket look like? If you sustained heat damage, the basket would look like a mangled mess. The PVC is a little tougher than the basket, so if the basket still looked good, you most likely did not suffer any other damage.

Photos would help here.
Particularly around the inlet and outlet pipes. Overall photo of your equipment will help determine if the system is set up correctly. Or if you can provide the pump horsepower, filter sq footage area, etc....