AC Tune Up in Tupelo, MS

The cooling tune up checklist

• Outdoor condenser coil cleaned and clearance around the unit checked
• Evaporator coil inspected for restriction and biological growth
• Blower wheel and motor inspected, with amp draw measured
• Filter evaluated and static pressure measured across the system
• Condensate pan, drain, trap, and float switch cleared and tested
• Capacitors measured in microfarads and compared to rating
• Contactor contacts inspected for pitting and burning
• Refrigerant performance verified with superheat or subcooling
• Supply and return temperatures recorded to establish the temperature split
• Thermostat calibration and control wiring checked

Why the numbers get written down

A single reading tells you whether the system is in range today. A series of readings tells you what is changing. A capacitor drifting from forty five microfarads to forty over two seasons is a part that will fail in August.

That is the practical value of documented maintenance: it converts an annual inspection into a trend you can act on.