Has anybody else seen any 2.5 to 7.5 ton York rtu's with water damaged circuit boards? Today I found my third one in about 6 months. They are all 2.5-7.5 ton units about 2-3 years old. They are the cheaper units without the nice hinged doors. The reason the boards get wet is because they are mounted about 1/4" off the bottom of the unit in a spot that is shaped like a drainpan with with walls about an inch deep. I looked on the York site for service bullitens and found nothing. I've been drilling holes in the "pan" that allow the water to drain to the roof. The scary part is that every one I've seen fails to HEAT mode. I've tried totally disconnecting the t-stat wires. It stays in heat mode! The one today also had a bad 1.5 h.p. blower motor. I don't know how long it's been cycling on limit.