Error Code 1 Flash

Amana AMSS960803BN Error Code 1 Flash: 1 Flash

TL;DR

Furnace lockout due to an excessive number of ignition retries (3 total).

Disclaimer

This article is for informational purposes only and does not guarantee the accuracy or completeness of the information provided. Always turn off power and gas supply before attempting any repairs. If you smell gas, leave immediately and call your gas company. Consult a licensed HVAC technician for diagnosis and repair. Any actions taken based on this information are at your own risk.

What Does Code 1 Flash Mean?

Furnace lockout due to an excessive number of ignition retries (3 total).

Common Causes

Cause	Likelihood	DIY?
No gas to burners	Most common	✗ Call a pro →
Front cover pressure switch stuck open	Common	✗ Call a pro →
Bad igniter or igniter alignment	Common	✗ Call a pro →
Improper orifices	Uncommon	✗ Call a pro →
Coated, oxidized, or improperly connected flame sensor	Uncommon	✗ Call a pro →
Interrupted gas supply	Uncommon	✗ Call a pro →
Lazy burner flames (improper gas pressure or restriction in flue and/or combustion air piping)	Uncommon	✗ Call a pro →
Front cover pressure switch opening	Uncommon	✗ Call a pro →
Improper induced draft blower performance	Uncommon	✗ Call a pro →

When to Call a Professional

Contact a licensed HVAC technician if:

Basic troubleshooting did not resolve the error
You smell gas at any point during the process
You are not comfortable working around gas lines or electrical components
The unit needs a gas valve, control board, or motor replacement

Sources

Service Instructions - GMSS9*/GCSS9*/AMSS9*/ACSS9* Single Stage Gas Furnaces and Accessories