Upon arrival I began the AC tune up. I found the static pressure was failing per the manufacturer specs it should be at 80% of .5 but it’s failing at .7. I checked the refrigerant charge and it looks good at this time. The Delta T was at 16 degree which in within manufacturer specs. All electrical components are within specs also. The blower does need to be cleaned pretty badly and the homeowner is aware he needs to have this done soon. I cleaned the outdoor unit with the extended coil cleaner that the customer provided me with(same thing we use). Eli is sending Field Supervisor Scott out to try to figure out why the static is failing but the CFM counts are good.