Trane Package Unit: 2/4YCC Re: Control Board Lockout / Fault Codes Red Light Status Description 2 Ignition Failure 3 Pressure Switch Fault 4 High Limit Switch or Roll-Out Open 5 Flame Sensed with Gas Valve Off 6* Rollout Switch Open 7 ...

Trane Package Unit: YCC Re: Heating - Code 2 - Won't Ignite The Trane YCC package unit uses an Ignition Control Board (IGN) with an on-board spark generator for all heating functions. Code 2 = Ignition Failure (3 Attempts) The control can be reset by: Cycling power to the unit. Cycling...

Trane Package Unit: 4YCC4 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 with the inducer motor de-energized. ...

Trane Package Unit: 4YCC4 Re: Flashing Code 4 Code 4 = High Limit or Roll-Out Switch Open * After 4 limit trips during a single call for heat, the control will enter a 1-Hour Soft Lockout and flash Code 4. Qty Possible Causes: Dirty Filter Bad Blower Motor ...