Upon arrival I put the system into cooling mode, and found the static to be failing. I replaced the filter with a customer supplied filter and adjusted the blower speed from High (factory) to Medium High and static was passing. I checked all electrical levels and blower wheel, everything looked good at this time. I moved to the outdoor unit. Outdoor unit is critically charged with refrigerant, went through the codes on the circuit board and found the evaporating temp to be within spec. I checked the compressor current amps and found them to be within spec as well. I performed an extensive coil clean today, and the system was running when I left.