Tech started on the condensers where technician washed and waxed units as well as vacuum them out technician then started up each system one at a time technician started with the Amana technician found a loose wire on the high voltage side technician fixed wire and everything is running perfectly at this time refrigerant levels are up to standards Delta's look good running amps look good at this time technician move to carrier which is original to the house technician found good refrigeration readings as well as a good Delta on the system everything is working fine and proper at this time as per manufacturers readings