Arrived on site to perform heating tune on a 2013 carrier unit. Client stated he’s been using heater and has been running good since last repairs done. He stated he doesn’t run ac as it’s cooler out here. Cycled heating on and is operational. Filter he replaced a month ago. Inspected attic and indoor. Found flex ducting but found it a bit underside. Blower assembly and whee dusty. Motor amps in range. Inducer motor is in range of amp. All safety switches are operational. Clean blue flame heating home. Temperature rise is in range. Drain lines are a bit dusty and have no safety over flow switch on lines. Found drain pump there and operational as it was tested. Tried to check static pressure. Was unable to due to ac would not turn on. Unit is a communicating unit and can not jump cooling on so tried to cycle ac on from thermostat and would not turn on and would shut off. Found condenser would be on but not blower motor. Tested a couple thing but found some wires to not be wired pr