In Phoenix, near West Running Deer Trail and North 23rd Drive performing a dual preventative maintenance service on a York split system. Upon arrival, cycled unit into cooling/heating mode. Decline of filter replacement. Took temperature readings from supply and return. At condenser, cleaned and tightened electrical connections. Took volts and amp draws from components. Checked Freon levels with super heat and subcool. Checked and tested start and run capacitors. At furnace, cleaned and tightened electrical connections. Took volts and amp draws from components. Upon departure, unit is working properly and within manufacturer specifications.
