York · error code

York Furnace 10 red flashes Error Code — Meaning & Repair Cost (2026)

Gas valve energized with no call for heat. Below: the most likely causes, and what the matching repair costs — Estimated national ranges with a metro localizer. Reviewed July 2026.

Code10 red flashes
ApplianceYork furnace
Brands covered1
ReviewedJuly 2026

What 10 red flashes means

Gas valve energized with no call for heat.

Likely causes, most common first

  1. Gas valve or its control relay stuck energized

Base: 1 published national repair-cost guide (retrieved 2026-07) · full source registry on the methodology page · Code meaning & causes · Reviewed July 2026

What it usually costs to fix Estimated

10 red flashes on a York furnace resolves to the gas furnace gas valve replacement problem. York is priced at the mainstream parts baseline — no brand adjustment applies.

Repair cost calculator

$300–$800 national estimate to fix the fault behind 10 red flashes. Enter a ZIP to localize.

Quality tier (adjusts parts)
National ranges — York furnace gas valve replacement Estimated
Most common repairTypical totalDIY?
Gas valve replacement (standard single-stage) $300–$650 Pro recommended
Gas valve replacement (multi-stage / modulating, high-end) $450–$800 Pro recommended

Plus a typical service-call / diagnostic fee of $75–$150, often credited toward the repair.

Pick a quality tier for a class-typical estimate, or a specific brand to override it (brand adjusts the parts portion only). Enter a ZIP or Canadian postal code to localize to your metro's labor costs. Everything updates without a page reload; no data leaves your browser except the shard lookup.

Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · National base range (BLS OEWS May 2025 + BEA RPP 2024) · Reviewed July 2026 · Estimated

See the full gas furnace gas valve replacement cost guide All error codes

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).