York Furnace 11 red flashes Error Code — Meaning & Causes (2026)
Limit circuit has remained open for more than five minutes and less than fifteen minutes. Below: what triggers it and what to check — this code carries no single repair to price. Reviewed July 2026.
What 11 red flashes means
Limit circuit has remained open for more than five minutes and less than fifteen minutes.
Likely causes, most common first
- Blower not moving enough air (control assumes a blower malfunction)
- Restricted airflow
Base: 1 published national repair-cost guide (retrieved 2026-07) · full source registry on the methodology page · Code meaning & causes · Reviewed July 2026
No single repair to price for this code
11 red flashes doesn't point at one failed component, so we don't attach a price module — forcing a repair mapping here would be dishonest. If the code keeps returning, the underlying symptom (not the code) is what gets priced: browse the gas furnace repair costs for the problem you're actually seeing.
Codes are universal — your location changes the repair price, never the code's meaning. See the methodology for the exact localization formula and sources.
Reviewed by a Red Seal–certified appliance technician who also holds a Technical Safety BC gas ticket (Gas-C) and an ODS/halocarbon refrigerant ticket (CFC/HCFC/HFC).