No Cooling or Insufficient Cooling
Compressor Will Not Run		Compressor runs but Cycles on Internal Overload		Compressor Runs but Insufficient Cooling
Contactor Open	Contactor Closed	Outdoor Fan Stopped or Cycling on Overload	Loose Lead st Fan Motor	Low Suction Pressure	High Suction Low Head Pressure	High Suction Low Superheat
Power Supply	Compressor Power Supply Open	Outdoor Air Restrained or Recirculating	Motor Defective	Dirty Air Filters	Defective Compressor Valves	Unit Overcharged
Defective Low Voltage Transformer	Loose Leads at Compressor	Restricted Discharge Tube	Incorrect CFM Capacitor	Duct Restricted	Internal Pressure Relief Open	Incorrect Size Piston
Open Thermostat	Faulty Start Gear (1-Ph)	Over Charge or Non-Condensables in system		Dampers Partially Closed
Open Control Circuit	Open Shortened or Grounded Compressor Motor Windings	Low Refrigerant Charge		Indoor Coil Frosted
Loss of Charge	Compressor Stuck	Line Voltage too High or Too Low		Slightly Low on Refrigerant
Contactor or Coil Defective	Defective Run Capacitor	Defective Run Capacitor		Liquid Line Slightly Restricted
Loose Electrical Connection		Compressor Bearings		Piston Restricted
		High Superheat		Incorrect Size Piston
				Indoor Coil Strainer Restricted
				Indoor Blower Motor Defective or Cycling on OL