Tech Tips
Outdoor Unit Will Not Run
FI0043

Contactor Will Not Pull "In"

• No Low Voltage (24 volt) between Yellow and Brown Wires at Unit
• No Low Voltage at Contactor Coil
• Open Pressure Switch
• Bad Time Delay
• Bad Contactor

Contactor Pulls "In"

• No Line Voltage
• Blown Fuse
• Tripped Circuit Breaker
• Open Service Disconnect