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Every common York fault code with what it means, the likely cause, and how CANRO Heating & Cooling fixes it — servicing York furnaces, air conditioners and heat pumps across Greater Vancouver since 1999. Licensed Technical Safety BC contractor (gas LGA0043870 · boiler LBP0046450).
York furnaces use a status LED that flashes a blink count on the control board; Affinity communicating systems show codes on the thermostat. York, Luxaire and Coleman share these controls.
Important: One power-cycle reset is generally safe for a transient fault. If the same code returns within minutes, stop resetting — lockouts exist to protect the heat exchanger, ignition system and gas-valve safety circuit. Note the exact code and call CANRO at (604) 359-1081. We carry common York parts on every truck, so most code-triggered faults are fixed in one visit. Smell gas? Leave and call the gas utility emergency line first.
What it means: Control operating normally.
Common causes: Normal.
What to do: None.
Reset guidance: n/a
What it means: Retries/recycles exceeded — failed ignition or repeated flame loss.
Common causes: Flame sensor, igniter, gas pressure, gas valve, condensate.
What to do: One power cycle OK; recurring needs service.
Reset guidance: one cycle OK
What it means: Draft/pressure switch did not prove or shorted.
Common causes: Blocked vent/intake, condensate trap, inducer, switch/tubing.
What to do: Inspect vent if safe; otherwise call.
Reset guidance: no
What it means: High-limit/rollout open from overheating.
Common causes: Low airflow (filter), blocked flue, rollout (possible cracked HX).
What to do: Replace filter; if it returns, call.
Reset guidance: no
What it means: Flame present with valve off.
Common causes: Gas-valve leak-by, sensor/grounding.
What to do: Shut off and call.
Reset guidance: no
What it means: Flame current low.
Common causes: Fouled flame sensor.
What to do: Clean/replace sensor.
Reset guidance: one cycle OK
What it means: Weak sensing or gas-valve circuit.
Common causes: Sensor, wiring, valve.
What to do: Service.
Reset guidance: one cycle OK
What it means: Hard lockout after failed ignition.
Common causes: Igniter, gas supply, valve, sensor.
What to do: Call — note the code.
Reset guidance: one cycle OK
What it means: Outdoor unit fault — Affinity communicating units show a code.
Common causes: Capacitor, contactor, refrigerant, defrost, reversing valve, compressor.
What to do: Read code and call.
Reset guidance: no
CANRO offers same-day and after-hours emergency repair across Greater Vancouver — no-heat, no-cooling and no-hot-water calls are prioritized. Note your code and call now.
📞 Call (604) 359-1081 — emergency York repairOur licensed Red Seal technicians diagnose and repair York furnaces, air conditioners and heat pumps in every Metro Vancouver city — Vancouver, Burnaby, Richmond, Surrey, Coquitlam, North & West Vancouver, New Westminster, Delta, Langley, Port Moody, Port Coquitlam, White Rock, Pitt Meadows and Maple Ridge — with honest, up-front pricing and a 4.9-star rating from 85+ Google reviews.
This York error-code guide is maintained by the CANRO Heating & Cooling team from 25+ years of HVAC install, service and repair across Greater Vancouver. Flash-count and code behaviour described match current York model manuals; exact codes can vary by model and series, so confirm against your unit’s manual or tell us the code when you call. Last reviewed June 2026.
Each York code points to a specific fault — ignition, pressure/draft, high-limit, flame-sensing, blower or communication. The guide above lists each one with its cause and fix. Tell us the exact code when you call (604) 359-1081 and we usually know the likely cause before arriving.
One power-cycle reset is fine for a one-off fault. If the same code returns within minutes, stop — repeated resets stress the ignition, gas-valve and heat-exchanger safety circuits. Note the code and call.
Yes — CANRO offers same-day and after-hours emergency response across Greater Vancouver, and we carry common York parts so most code faults are fixed in one visit. Call (604) 359-1081.
Yes — Technical Safety BC gas contractor LGA0043870 and boiler licence LBP0046450, Red Seal technicians, fully insured, serving Greater Vancouver since 1999.
“Canro does an amazing job! Super professional and skilled with everything—boilers, furnaces, and AC. Always a pleasure working with them!”
“Five stars for Canro. We needed a replacement of a 30-year-old boiler. A new high-efficiency unit was installed—clean, professional work.”
“I can’t speak highly enough about George, who was recommended for a boiler service call for my parents’ home. George is excellent.”
25+ years keeping Metro Vancouver homes comfortable. Honest advice, upfront pricing, work that lasts.