bryant furnace flame rollout switch manual reset

The Bryant furnace flame rollout switch is a critical safety component designed to detect and prevent dangerous flame rollout conditions in gas furnaces. When triggered, this safety switch shuts off the furnace to prevent potential fire hazards. Below are key sections for understanding, identifying, resetting, and troubleshooting the flame rollout switch.

Understanding Flame Rollout

Flame rollout occurs when combustion flames escape the heat exchanger chamber, which can create dangerous conditions. The flame rollout switch detects this condition and shuts down the furnace as a safety measure.

Identifying the Flame Rollout Switch

The flame rollout switch is typically located near the burner assembly and is a small rectangular device with a reset button. It's usually red or black and has electrical wires connected to it.

1. Turn off power to furnace at circuit breaker.
2. Remove front access panel carefully.
3. Locate switch near burner tubes - look for reset button.
4. Identify wiring connections (usually two wires).

WARNING! Always disconnect power before accessing furnace components to prevent electrical shock.

Safety Precautions

Before attempting reset, ensure proper safety measures are followed.

1. Turn off gas supply valve to furnace.
2. Switch off electrical power at circuit breaker.
3. Wait 5 minutes for gas to dissipate if smell is present.
4. Use flashlight for visibility - no open flames.
5. Wear safety glasses and gloves.

CAUTION! If gas odor is strong, evacuate immediately and call gas company.

Manual Reset Procedure

• Step 1: Turn off thermostat to lowest setting.
• Step 2: Shut off power at circuit breaker.
• Step 3: Remove furnace access panels.
• Step 4: Locate flame rollout switch (near burners).
• Step 5: Press reset button firmly until click is heard.
• Step 6: Replace access panels securely.
• Step 7: Restore power at circuit breaker.
• Step 8: Set thermostat to desired temperature.

Common Causes of Tripping

Access OSD via TV MENU or SETUP (DVD). Front Panel: POWER, OPEN/CLOSE, AUTO/DPMS, MUTE.

Primary causes: Restricted airflow, cracked heat exchanger, blocked flue, dirty burners, faulty inducer motor, improper gas pressure.

Restricted airflow: Check filters, blocked vents, dirty blower. Heat exchanger issues: Cracks or corrosion. Venting problems: Blocked flue pipe, bird nests. Burner issues: Dirt accumulation, misalignment. Gas pressure: Too high or low pressure settings.

Troubleshooting Steps

If switch continues to trip after reset, follow these diagnostic steps.

1. Check and replace air filter if dirty.
2. Inspect burners for dirt or corrosion.
3. Verify flue pipe is clear of obstructions.
4. Check inducer motor operation.
5. Inspect heat exchanger for visible cracks.
6. Test gas pressure with manometer.

Tip: Use mirror to inspect heat exchanger tubes for cracks or holes.

When to Call a Professional

Contact certified HVAC technician if:

1. Switch trips repeatedly after reset.
2. Visible cracks in heat exchanger.
3. Strong gas odor present.
4. Unusual noises during operation.
5. Soot accumulation around burners.
6. Water leakage from furnace.
7. Yellow burner flames (should be blue).

WARNING! Never bypass safety switches - this creates serious fire and carbon monoxide hazards.

Maintenance Tips

Regular maintenance prevents flame rollout switch issues.

Monthly: Check/replace air filters. Quarterly: Clean burners and flame sensor. Annually: Professional inspection and cleaning. Seasonal: Check vent pipes for obstructions.

Technical Specifications

Bryant furnace flame rollout switches typically operate within these parameters:

Warranty Information

Bryant furnaces typically include 20-year heat exchanger warranty and 5-year parts warranty. Flame rollout switch replacement may be covered if failure is not due to lack of maintenance. Contact Bryant dealer for specific warranty details.

Frequently Asked Questions

Emergency: If gas smell persists, evacuate and call 911 or gas company.

Service: Contact Bryant dealer at 1-800-BRYANT-1; www.bryant.com