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2/4YCC Fault Codes

Article ID: 391
Last updated: 19 Mar, 2018

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 W2 Received Without W1
7* Gas Valve Circuit Error
8 Low Flame Signal

* Units with LitePort - Code 6 does not exist, Code 7 = Gas Valve Circuit Error

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Article ID: 391
Last updated: 19 Mar, 2018
Revision: 6
Access: Public
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