Trane 2/4WCC Fault Codes

Trane Package Unit: 2/4WCC

Re: Control Board Lockout / Fault Codes


Red Light Status Description Control Behavior
1 Ambient Temp Sensor Out of Range Initiates a Timed Defrost every 60 min.
2 Coil Temperature Sensor Out of Range Initiates a Timed Defrost every 60 min.
3 Low Pressure Switch Open Goes away when LPCO closes
4 Hard Lockout - 9 Low Pressure Trips  Requires power-cycle to reset
5 Soft Lockout
6 Too Many Defrost Cycles
7 In Timed Defrost Mode (Check Amb Sensor)
8 In Timed Defrost Mode (Check Coil Sensor)
9 Low Ambient Soft Lockout Outdoor Temp below -7 deg.


Article ID: 292
Last updated: 14 Jan, 2019
Revision: 5
Equipment -> Package Units -> Trane -> 2/4WCC -> Trane 2/4WCC Fault Codes
https://ghac.makekb.com/entry/292/