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Trane 2/4WCC Fault Codes

Article ID: 292
Last updated: 14 Jan, 2019

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.
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Article ID: 292
Last updated: 14 Jan, 2019
Revision: 5
Access: Public
Views: 906
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