Bryant Furnace Error Codes — Meanings, Causes & Repair in Greater Vancouver

Seeing a fault code on your Bryant furnace? This guide explains what the most common Bryant furnace error codes mean, what’s safe to check yourself, and when to call HeatLand’s licensed, TSBC-certified gas technicians for Bryant furnace repair across Metro Vancouver and the Fraser Valley.

The codes below apply across common Bryant models (Evolution, Preferred, Legacy). Meanings follow Bryant’s documented fault codes — always confirm against your unit’s own manual, because exact wording can vary by model, control board and firmware.

How to read Bryant furnace error codes

Bryant furnace status codes (LED flash count)

Bryant furnace error codes & what they mean

These are the Bryant furnace codes our Greater Vancouver technicians see most. Anything marked pro repair involves gas, electrical, sealed-combustion or control-board work that must be done by a licensed gas technician (TSBC-certified in BC) — never open gas or electrical components yourself.

Code	What it usually means	Common causes	Safe to check yourself
Continuous OFF	No status light at all. The control has no power. Check for 115VAC at the line connections and 24VAC at the control's secondary connections pro repair	No 115V power to the furnace (tripped breaker or off furnace switch); Open furnace door safety switch; Open low-voltage fuse on the control board	Confirm the furnace power switch (looks like a light switch near the furnace) is ON; Check the furnace breaker in the electrical panel and reset it once if tripped; Make sure the blower compartment door is fully closed so the door safety switch engages
Continuous ON	Status light glows steady (not flashing). The control has 24VAC power present. A steady light by itself is a power indication, not a fault DIY-checkable	Normal power-present indication on some control boards; On boards that should flash a code, a steady light can indicate a control fault	Set the thermostat to Heat and a few degrees above room temperature and watch whether the furnace begins its start sequence; Cycle furnace power off and back on once at the furnace switch
Rapid flashing	Rapid (fast continuous) flashing indicates the 115VAC line-voltage polarity is reversed, or on twinned units the transformers are out of phase. If twinned, refer to the twinning kit instructions pro repair	Line and neutral reversed at the furnace or at the receptacle/junction; Transformers out of phase on twinned furnaces; Miswired field 115V connections	Confirm the furnace power switch is ON; Note the code for the technician (this points to a 115V wiring/polarity issue that needs a licensed tech)
11	No previous code. The control has no stored fault in memory. Stored status codes are erased when power (115VAC or 24VAC) to the control is interrupted, or 48 to 72 hours after each fault is cleared. Code 11 means normal, no action required DIY-checkable	Normal status: no faults currently stored; Power was recently interrupted, clearing stored history	No action needed; this indicates no stored fault
12	Blower on after power up. The blower runs for 90 seconds if the unit is powered up during a call for heat (thermostat R-W closed), or if a call for heat is interrupted during the blower on-delay period. This is normal operation, not a fault DIY-checkable	Power was restored while the thermostat was calling for heat; A brief power interruption during a heat cycle; If it repeats every couple of minutes, an intermittent power connection	Confirm steady power: check the furnace switch and breaker; If it keeps repeating, note it for the technician (possible loose power connection)
13	Limit or flame roll-out switch lockout. The furnace has locked out because the limit switch or flame roll-out switch stayed open too long (typically more than 3 minutes) or too many successive limit trips occurred. The control will auto-reset after about three hours. Related to code 33 pro repair	Dirty air filter or restricted return-air/duct system causing overheating; Failed or weak blower motor or run capacitor; Open flame roll-out switch (requires manual reset by a tech) often indicating a combustion problem	Check the air filter and replace it if dirty; Make sure supply and return vents/registers throughout the home are open and unblocked; Confirm the blower door is closed
14	Ignition lockout. The furnace failed to ignite the gas and/or prove flame within the allowed number of attempts (typically 4). The control will auto-reset after about three hours. Refer to code 34 for the underlying ignition-proving fault pro repair	Gas supply off or low inlet gas pressure; Dirty or oxidized flame sensor; Failed hot surface igniter	Confirm the gas is on and other gas appliances (stove, water heater) work normally; Check the air filter and replace if dirty; Set the thermostat to Heat above room temperature and watch one start attempt
21	Gas heating lockout. The main gas valve relay on the control failed; the control commanded the gas valve to a state it could not achieve. The control will NOT auto-reset. Check for miswired gas valve or a defective control (gas valve relay) pro repair	Miswired gas valve; Defective control board (gas valve relay); Wiring or connection fault to the gas valve	Note the code for the technician; Power-cycle the furnace once at the furnace switch to see if it recovers
22	Abnormal flame-proving signal. Flame is being proved (sensed) while the gas valve is de-energized. The inducer will run until the fault is cleared. Check for a leaky or stuck-open gas valve pro repair	Leaky gas valve; Stuck-open gas valve; Flame sensor or control reading flame when none should be present	Note the code for the technician (this indicates a gas valve concern that needs a licensed tech)
23	Pressure switch did not open. The pressure switch contacts were found closed when they should have been open. Check for obstructed pressure tubing or a pressure switch stuck closed pro repair	Obstructed or pinched pressure-switch tubing; Pressure switch stuck closed; Defective pressure switch	Note the code for the technician (pressure switch and tubing are internal components)
24	Secondary voltage fuse is open. The low-voltage (24VAC) fuse on the control board is open/blown. Check for a short circuit in the secondary-voltage (24VAC) wiring pro repair	Short circuit in the 24VAC low-voltage wiring; Wiring fault from thermostat or accessory (e.g., humidifier) connection; Pinched or grounded control wire	Note the code for the technician (a blown low-voltage fuse usually points to a wiring short)
25	Model selection or setup error. On variable-speed controls, this indicates the model plug (PL4) is missing or there is no valid model selection stored in the control's memory pro repair	Missing or unseated model plug (PL4) on the control; Replacement control not yet configured for the furnace model; Control memory has no valid model stored	Note the code for the technician (control configuration/model plug is a service item)
31	High-heat pressure switch or relay did not close or reopened. The high-heat pressure switch failed to close when expected, or reopened during operation, or the associated relay did not perform correctly. Often related to venting/draft and to code 32 pro repair	Restricted or improperly sized vent; Blocked or snow/debris-covered vent or intake terminal; Weak or failing inducer motor	Outside, check the vent/intake terminals and clear any snow, ice, leaves, or debris from the openings; Check the air filter and replace if dirty; Power-cycle the furnace once at the furnace switch
32	Low-heat pressure, draft safeguard, or auxiliary-limit switch did not close or reopened. If open longer than five minutes, the inducer shuts off for 15 minutes before retrying. Indicates a draft/venting or combustion-air problem pro repair	Improper vent sizing or restricted vent; Inadequate combustion air supply; Low inducer voltage or defective inducer motor	Outside, clear snow, ice, or debris from the vent and intake terminals; Check the air filter and replace if dirty; Power-cycle the furnace once at the furnace switch
33	Limit or flame roll-out switch is open. If the switch stays open longer than three minutes the code changes to lockout code 13. A tripped flame roll-out switch requires manual reset by a technician. Usually an airflow or overheating condition pro repair	Dirty air filter or restricted duct system; Loose blower wheel; Defective blower motor or capacitor	Check the air filter and replace if dirty; Make sure supply and return registers are open and unblocked throughout the home; Confirm the blower door is closed
34	Ignition proving failure. Flame was not proved during the trial-for-ignition. The control will try three more times before going to ignition lockout (code 14). If flame is lost after the trial-for-ignition period, the blower comes on for a 90-second recycle delay pro repair	Gas valve defective or gas turned off; Oxide buildup on the flame sensor; Defective hot surface igniter	Confirm the gas is on and other gas appliances work normally; Check the air filter and replace if dirty; Power-cycle the furnace once at the furnace switch and watch one ignition attempt
41	Blower motor fault. On variable-speed/modulating controls, this indicates the blower failed to reach 250 RPM, or the blower failed to communicate with the furnace control (within about 30 seconds after being turned on, or within about 10 seconds during steady-state operation) pro repair	Failed variable-speed blower motor or motor module; Loss of communication between blower motor and control; Wiring or connector fault to the blower motor	Confirm the furnace power switch is ON and the breaker is not tripped; Power-cycle the furnace once at the furnace switch
42	Inducer motor fault. On variable-speed/modulating controls, this indicates the inducer did not start within about 20 seconds of a call for heat, the inducer RPM is outside its valid range, or the inducer RPM signal was lost for about 5 seconds during operation pro repair	Failed or failing inducer motor; Loss of inducer RPM feedback signal; Wiring or connector fault to the inducer motor	Confirm the furnace power switch is ON and the breaker is not tripped; Power-cycle the furnace once at the furnace switch
43	Low-heat pressure, draft safeguard, or auxiliary-limit switch open while the high-heat pressure switch is closed. Indicates a pressure switch / draft inconsistency between the low-heat and high-heat switches. Refer to codes 32 and 33 pro repair	Disconnected or obstructed pressure tubing; Pressure switch stuck open; Venting or draft problem affecting one switch	Outside, clear snow, ice, or debris from the vent and intake terminals; Note the code for the technician (pressure switches and tubing are internal)
45	Replace control / control circuitry lockout. The control has detected an internal control-circuitry fault. The control board itself needs to be replaced pro repair	Internal control board failure; Control circuitry fault detected during self-check	Power-cycle the furnace once at the furnace switch to confirm the code repeats; Note the code for the technician (the control board typically needs replacement)

Bryant furnace codes we get called for most

14 — Ignition lockout. The furnace failed to ignite the gas and/or prove flame within the allowed number of attempts (typically 4). The control will auto-reset after about three hours. Refer to code 34 for the underlying ignition-proving fault

Typical causes include gas supply off or low inlet gas pressure; dirty or oxidized flame sensor; failed hot surface igniter. A few things are safe to check yourself (Confirm the gas is on and other gas appliances (stove, water heater) work normally; Check the air filter and replace if dirty), but the repair is a licensed, TSBC-certified gas technician job. HeatLand diagnoses and fixes 14 on Bryant furnaces throughout Greater Vancouver.

23 — Pressure switch did not open. The pressure switch contacts were found closed when they should have been open. Check for obstructed pressure tubing or a pressure switch stuck closed

Typical causes include obstructed or pinched pressure-switch tubing; pressure switch stuck closed; defective pressure switch. A few things are safe to check yourself (Note the code for the technician (pressure switch and tubing are internal components)), but the repair is a licensed, TSBC-certified gas technician job. HeatLand diagnoses and fixes 23 on Bryant furnaces throughout Greater Vancouver.

33 — Limit or flame roll-out switch is open. If the switch stays open longer than three minutes the code changes to lockout code 13. A tripped flame roll-out switch requires manual reset by a technician. Usually an airflow or overheating condition

Typical causes include dirty air filter or restricted duct system; loose blower wheel; defective blower motor or capacitor. A few things are safe to check yourself (Check the air filter and replace if dirty; Make sure supply and return registers are open and unblocked throughout the home), but the repair is a licensed, TSBC-certified gas technician job. HeatLand diagnoses and fixes 33 on Bryant furnaces throughout Greater Vancouver.

12 — Blower on after power up. The blower runs for 90 seconds if the unit is powered up during a call for heat (thermostat R-W closed), or if a call for heat is interrupted during the blower on-delay period. This is normal operation, not a fault

Typical causes include power was restored while the thermostat was calling for heat; a brief power interruption during a heat cycle; if it repeats every couple of minutes, an intermittent power connection. A few things are safe to check yourself (Confirm steady power: check the furnace switch and breaker; If it keeps repeating, note it for the technician (possible loose power connection)), but the repair is a licensed, TSBC-certified gas technician job. HeatLand diagnoses and fixes 12 on Bryant furnaces throughout Greater Vancouver.

Is it safe to keep running a Bryant furnace with a fault code?

Most Bryant fault codes put the furnace into a safe lockout for a reason. You can safely check the basics — the furnace switch and breaker on, a clean air filter, the gas supply on, the thermostat set to heat and calling, and — on high-efficiency models — the condensate drain not blocked or frozen — and restart it once. If the code returns, stop and book a technician. If you ever smell gas, leave the building and call your gas utility’s emergency line or 911 first. If a carbon-monoxide alarm sounds, get everyone out and call 911. A rollout or repeated limit trip can signal a heat-exchanger or venting problem — don’t keep resetting it.

Bryant furnace repair across Greater Vancouver

HeatLand has kept Metro Vancouver homes comfortable since 1999. Our licensed, insured technicians diagnose and repair Bryant furnaces — ignition and flame-sensor faults, pressure-switch and venting problems, limit and rollout trips, blower and igniter issues, and control-board errors — including units we didn’t install. We’re brand-agnostic, carry common parts, and give you an honest repair-or-replace assessment with upfront pricing and a free estimate. If your furnace is beyond economical repair, we’ll show you right-sized, high-efficiency replacement options and the rebates available.

Need it sorted fast? We offer priority emergency furnace repair. Explore Furnace services, browse all furnace error codes by brand, or request a free estimate.

Bryant furnace service areas

We repair Bryant furnaces across Greater Vancouver and the Fraser Valley, including:

Bryant furnace error code FAQs

Can I reset my Bryant furnace myself?

Yes — power-cycling the reset button once is generally safe after you’ve checked the basics (the furnace switch and breaker on, a clean air filter, the gas supply on, the thermostat set to heat and calling, and — on high-efficiency models — the condensate drain not blocked or frozen). If the furnace faults again right away, stop and note the code — repeatedly resetting a furnace that keeps locking out can mask a real problem. Call a licensed, TSBC-certified gas technician to diagnose it.

What does the Bryant 14 code mean?

On Bryant furnaces, 14 commonly indicates ignition lockout. the furnace failed to ignite the gas and/or prove flame within the allowed number of attempts (typically 4). the control will auto-reset after about three hours. refer to code 34 for the underlying ignition-proving fault. Confirm the exact meaning against your unit’s manual — codes can vary by model and series — and have the repair done by a licensed, TSBC-certified gas technician. HeatLand fixes this across Greater Vancouver.

Do you repair Bryant furnaces you didn’t install?

Yes. HeatLand is brand-agnostic and services Bryant furnaces throughout Metro Vancouver and the Fraser Valley, whether or not we installed the unit. We carry common parts and give you an honest repair-or-replace assessment.

Is a Bryant furnace fault code an emergency?

No heat in cold weather is worth treating urgently. If you ever smell gas, leave the building and call your gas utility’s emergency line or 911 first. If a carbon-monoxide alarm sounds, get everyone out and call 911. A rollout or repeated limit trip can signal a heat-exchanger or venting problem — don’t keep resetting it. For priority furnace repair across Greater Vancouver, call (604) 330-3812.

How much does Bryant furnace repair cost in Vancouver?

It depends on the fault. Many Bryant codes point to sensors, ignition or pump parts — usually far cheaper than replacement. We give upfront pricing and a free estimate before any work.

More Furnace error-code guides

HeatLand repairs every major furnace brand across Greater Vancouver. More brand guides: