Error code reference

Trane Furnace Error Code 9 Flash

Open inducer limit error: inducer limit switch is open, normally caused by improper installation or application of the furnace venting system.

SourceTrane XV95 Gas Furnace - Tech Sheet: Variable Speed ModelsPage 27/31/42

Trane codes Trane furnace codes

Diagnostic procedure

The full 9 Flash procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview

First diagnostic step

Disconnect electrical power from the furnace and remove 1 wire from the inducer limit switch; check continuity across inducer limit switch.

SourceTrane XV95 Gas Furnace - Tech Sheet: Variable Speed ModelsPage 27/31/42

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Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.

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Where this code is documented

2 manuals in the MyPros+ library document this code for Trane furnace.

Models covered by the manuals that document this code

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The full 9 Flash procedure

Where this code is documented

Models covered by the manuals that document this code

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