Knowledgebase
4YCY - Diagnostic Codes
Trane Package Unit: 4YCY Re: Control Board Lockout / Fault Codes Red Light Status Description Off No Power or Control Failure On Normal - No Call for Heat Slow Flash Normal - Call for Heat 2 Ignition Failure 3 Pressure Switch Fault 4 ...
04 Mar, 2020 Comments: 0
4YCY - Flashing Code 3
Trane Package Unit: 4YCY Re: Flashing Code 3 Code 3 = Pressure Switch Fault A Code 3 will be generated in either of the following conditions: The pressure switch failed to close with the inducer motor energized. The pressure switch failed to re-open (stuck closed) with the inducer motor...
04 Mar, 2020 Comments: 0