Silver and blue club plan AC tune ups on Carrier split system and Mitsubishi ductless mini split systems. Customer just changed filters on main system. Washed condensers. Cleaned ductless head unit filters. Checked capacitor and contactor. Dual capacitor on carrier condenser is reading 4.7/5.0 mfd and may need to be changed in the next season or two. Checked ductless amps and volts. Checked inside temp accuracy. Ductless system is operating great at this time. Checked main system blower, and control board connections. Door to blower cabinet had a loose knob due to the tunes having broken in them over time, so I set a screw in door to help ensure it is held in place. Checked evaporator coil, float switch, drain pan and drain line. Flushed line with compressed nitrogen to ensure it is clean and free. Cycled system on and checked amps, volts and outside delta temps. All 3 surge protectors are working. Carrier system is running great at this time.