The Luxaire Furnace is a high-efficiency heating system designed for residential use, featuring advanced diagnostic capabilities, multiple safety controls, and energy-efficient operation. This troubleshooting manual covers common issues, diagnostic procedures, maintenance guidelines, and safety precautions for various Luxaire furnace models. Below are key sections for safety, features, operation, maintenance, and troubleshooting.
Before attempting any troubleshooting, ensure proper safety measures are followed.
| Safety Measure | Description |
|---|---|
| Power Disconnect | Turn off electrical power at service panel before servicing |
| Gas Valve | Shut off gas supply before working on gas components |
| Carbon Monoxide | Install CO detectors near furnace and sleeping areas |
| Clearance | Maintain proper clearance from combustible materials |
| Ventilation | Ensure proper airflow and venting for combustion |
| Professional Help | Contact qualified technician for complex repairs |
Key components: Control board, igniter, flame sensor, pressure switch, blower motor, gas valve, limit switches.
WARNING! Only qualified technicians should service gas and electrical components.
LED flash codes provide diagnostic information for troubleshooting.
| LED Pattern | Description | Meaning |
|---|---|---|
| 1 Flash | Pressure switch stuck open | Check venting, pressure switch |
| 2 Flashes | Pressure switch stuck closed | Replace pressure switch |
| 3 Flashes | Rollout switch open | Check for blocked heat exchanger |
| 4 Flashes | Open high limit switch | Check airflow, filter, blower |
| 5 Flashes | Flame sensed with gas off | Replace gas valve or control board |
| 6 Flashes | Ignition failure | Check igniter, gas supply, flame sensor |
Digital display models show specific error codes for diagnosis.
Follow these steps before calling for professional service.
CAUTION! If you smell gas, evacuate immediately and call gas company.
Regular maintenance ensures optimal performance and safety.
| Maintenance Task | Frequency | Procedure |
|---|---|---|
| Filter Replacement | Monthly | Replace disposable filters or clean permanent filters |
| Blower Cleaning | Annually | Vacuum blower assembly and motor |
| Flame Sensor | Annually | Clean with fine sandpaper or steel wool |
| Heat Exchanger | Annually | Inspect for cracks or damage |
| Vent System | Annually | Check for obstructions and proper slope |
| Burner Inspection | Annually | Clean burners and check flame pattern |
Basic component testing procedures for common issues.
WARNING! Electrical testing should only be performed by qualified personnel.
Proper reset procedures for various furnace conditions.
Note: Multiple lockouts may indicate serious problem requiring professional service.
When to contact a qualified Luxaire technician.
Contact Luxaire support at 1-800-572-2200 for authorized service providers.
Luxaire furnace warranty coverage details.
For warranty claims, contact 1-800-572-2200 or visit www.luxaire.com
| Question | Answer |
|---|---|
| Furnace blows cold air | Check gas supply, igniter, flame sensor, or limit switch |
| Furnace cycles on and off frequently | Dirty filter, restricted airflow, or oversized unit |
| Furnace won't turn on | Check power, thermostat, door switch, fuse |
| Strange odors from furnace | Dust burning off (normal) or gas leak (emergency) |
| Furnace makes loud noises | Check blower wheel, motor bearings, or heat exchanger |
| High utility bills | Dirty filters, leaky ducts, or inefficient operation |
Emergency: If you smell gas or suspect carbon monoxide, evacuate immediately and call 911.
Support: 1-800-572-2200; www.luxaire.com