If you are comfortable and know how to test for power with a test light, you can do it yourself. If not, leave it to a pro. I'd start by testing for power at the switch. If there is power there, go to the next spot downstream; if no power, back up to the next spot upstream. Did you check fuses? Sounds like no power to the switch if no light comes on. If you had a light, then I would go with the pump.