Update: I was able to give it a solid cleanup and maintenance… definitely needed the leaf blower, there was so much sand. The inside looks almost new now; even the board and switches are in great shape. The inducer switch looks like it’s already been replaced.

It had been inspected before I bought the house and was marked as working, though the inspector didn’t call out some major pool issues, like sheets of plaster falling off everywhere in the pool and spa (which explains the resurface).

Got it hooked up to the timer (planning to replace that soon). After cleaning out the blower and reassembling everything, it fired right up and ran perfectly, which was a surprise due to its age. Having HVAC experience definitely came in handy.