Found a dirt diver's nest that was on the condenser coils. It had collapsed into the drain pan. Spent about 45 minutes cleaning up the unit and digging dirt out of the drain pan. For anyone watching videos on cleaning the drain pan which will be for other units, the Duo-Therm 600 series Penguin drain pan appears to be black, fixed where the condenser coil is located with two drain slots either side, left and right.
Currently testing the unit. It's cooling better. No dripping and it looks to be draining well as seen from the exterior. I think I fixed it.
Now, waiting for a new cover to be delivered. I was planning to refurbish the old one by patching some cracks and holes, but it was so brittle, I didn't think it worth the effort or money.