How do I fix American Standard error code 9 Flashes?

Inspect the igniter for cracks or damage (it’s brittle). If cracked or not glowing, replace the igniter. Check the wiring harness to the igniter for loose connections. After replacement, reset the furnace and verify ignition.

American Standard | Furnaces

Error Code 9 Flashes

Troubleshooting guide for the American Standard Furnaces system fault 9 Flashes.

Disclaimer: This information is for general reference. Error codes can vary by model and production year. Always refer to your machine's specific manual and the information printed on the unit itself.

System Diagnosis

Igniter problem. The hot surface ignitor failed to light the burners or is not drawing the correct current.

Potential Causes & Solutions

Inspect the igniter for cracks or damage (it’s brittle).
If cracked or not glowing, replace the igniter.
Check the wiring harness to the igniter for loose connections.
After replacement, reset the furnace and verify ignition.

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