Compressor Does Not Run

Questions	Cause	Remedy
What is the temperature inside of the box? What is the box control temperature setting?	No cooling needed	None. Wait until cooling is needed.
Where is the temperature being sensed?	Control off, due to cold location.	Move temperature control bulb to warmer location.
Have you checked the liquid line solenoid to make sure it is open? Does the coil have power?	Liquid line solenoid will not open.	Repair or replace coil.
Have you checked voltage and amperage to compressor?	Low voltage or amperage.	Increase voltage and or amperage to nameplate specifications
Is main switch closed?	Motor line open.	Close start or disconnect switch.
Have you checked the fuses?	Fuse blown.	Check electrical circuits and motor windings for shorts or grounds. Investigate possible overloading. Replace fuse(s) after fault is corrected.
Have you checked wiring connections?	Improperly wired	Check all wire junctions. Tighten all terminal screws.
Have you checked your wiring?	Improperly wired.	Check wiring against diagram. Make changes as necessary.
Have you checked your contractors & relays?	Contractor or relay (see section III)	Repair or replace contractor or relay.
Will unit restart after time?	Tripped overload	Overloads are automatically reset. Check unit close when unit comes on line for cause of overheating.
Are all controls functioning properly?	Control stuck open.	Repair or replace control.
Are all safety devices in a reset mode?	System shutdown for safety device.	Determine cause and type of shutdown and correct it before resetting the safety switch.
Have you checked start capacitor?	Start Capacitor (see section IV)	Replace if necessary.
Have you checked run capacitor?	Start Capacitor?	Replace if necessary.
K & L. Does compressor pull	Piston stuck.	K & L. Replace compressor.