luxaire furnace owners manual code rollout switch open code 5

The Luxaire furnace with rollout switch open code 5 indicates a safety lockout condition where the rollout limit switch has detected excessive heat or flame rollout. This safety feature prevents dangerous operation and potential fire hazards. Below are key sections for understanding, diagnosing, and resolving code 5 issues, along with safety precautions and maintenance guidelines.

Understanding Code 5

Code 5 indicates the rollout limit switch has opened due to detected flame rollout or excessive heat in the burner compartment. This safety switch prevents continued operation when unsafe conditions are present.

Safety Precautions

Before attempting any diagnosis or repair, ensure proper safety measures are followed.

1. Turn off electrical power to furnace at circuit breaker.
2. Turn off gas supply valve to furnace.
3. Wait for furnace to cool completely before inspection.
4. Use proper tools and personal protective equipment.

WARNING! Gas furnaces can be dangerous. If unsure, contact qualified HVAC technician. Never bypass safety switches.

Diagnostic Procedures

Systematic approach to identify the root cause of code 5.

1. Visual inspection: Check for visible flame rollout, soot, or damage.
2. Check airflow: Verify clean filters and unobstructed vents.
3. Inspect heat exchanger: Look for cracks or damage.
4. Test gas pressure: Ensure proper manifold pressure.
5. Check venting: Verify no blockages in flue pipes.

CAUTION! Always restore power and gas in proper sequence after servicing.

Reset Instructions

• Power Cycle: Turn off power for 30 seconds, then restore.
• Manual Reset: Locate rollout switch button and press to reset.
• Control Board Reset: Some models require control board reset procedure.
• System Restart: After reset, furnace will attempt normal startup sequence.

Common Causes

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

Primary Issues: Restricted airflow, cracked heat exchanger, improper gas pressure, blocked venting, faulty limit switch.

Airflow: Dirty filters, blocked registers, dirty blower wheel. Combustion: Gas valve issues, burner problems, flame sensor failure. Venting: Blocked flue, improper installation, negative pressure. Components: Failed rollout switch, control board issues, wiring problems.

Prevention & Maintenance

Regular maintenance prevents recurrence of code 5 issues.

1. Replace air filters monthly during heating season.
2. Schedule annual professional inspection and cleaning.
3. Keep vents and registers clear of obstructions.
4. Ensure proper combustion air supply.
5. Check vent pipes for blockages seasonally.

Tip: Mark maintenance dates on calendar for regular service intervals.

Technical Specifications

Luxaire furnace specifications relevant to code 5 diagnosis.

When to Call a Professional

Certain conditions require qualified HVAC technician intervention.

1. Visible flame rollout or soot present.
2. Suspected heat exchanger damage.
3. Gas odor detected.
4. Multiple reset attempts fail.
5. Uncertain about proper diagnosis.

WARNING! Carbon monoxide hazards require immediate professional attention.

Warranty Information

Luxaire furnace warranty coverage and limitations for code 5 related issues.

CAUTION! Unauthorized repairs may void warranty. Consult manufacturer guidelines.

Troubleshooting Guide

Emergency: 1-800-LUXAIRE; www.luxaire.com