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critical Trane
Error Code E11
Gas valve not energized when it should be (e.g., failed to establish flame in first try). Retry exceeded condition.
? What Causes This
Faulty gas valve, igniter failure, or electrical wiring issues.
✓ How to Fix It
Shut off power and check electrical connections. Replace faulty components such as the gas valve or ignition system.
Source: page 26 of the official manual
From the manual
This error code appears in:
Trane S9x1