2= Commercial Crawlspace A/C Tuneup. Replace 2=#20x25x2 Air Filter. 3=T-Stat, 2=Drain Trap, 71*-51* & 70*-50*=20* D-T, 2= Blower Motor, 2=R410A, 2= Disconnect, 2=5+370 Run Cap, Electrical, 68* Outside, Hose Down, Cycled Units, Clean And Check. Found A Bad Spring On A Drop-Down Ladder Recommed The Owners Replace Or Replace Spring.