I am looking at buying a bank foreclosure. The outside unit looks fairly new and has Puron labeled on the top--so it is a Carrier--and the furnace is a 2005 Carrier. But the outside unit is missing the metal plate covering the wiring--so the wiring has been exposed for months and the model number and serial number are on the missing plate. Will an a/c tech be able to service the unit based on the approximate size, probably a 2.5 to 3 ton because the house is 1200-1300 sq ft. I suppose a new plate could be bent to fit and protect the wires. And would the plate be missing because the unit has been condemned as unsafe? Or leaking freon? The unit turns on per the bank's inspection. Thanks.