# AGA Error Code 140 > AGA error code 140 — Configuration key fault. Which models show it, what causes it and how it is fixed. Mon–Sun 8:00AM–8:00PM. Call or text 206-427-7323. - HTML page: https://aga.repair/aga-error-code-140/ - Markdown version: https://aga.repair/aga-error-code-140.md - Site: Appliance Repair Pros (https://aga.repair) — 206-427-7323 — Mon–Sun 8:00AM–8:00PM ## On this page - Meaning - Models - Causes - Fix - Related problems - More codes - FAQ