Understanding Infrared Heaters and Common Issues
Infrared heaters operate by emitting electromagnetic radiation that directly heats objects and individuals within their vicinity, rather than warming the surrounding air. This efficient heating method makes them suitable for a variety of environments, including indoor spaces, patios, and outdoor areas. Despite their reliability, like all appliances, infrared heaters can encounter operational problems. These issues might include failure to power on, inconsistent heating, or unusual noises. This detailed guide offers practical troubleshooting tips to identify and resolve common infrared heater problems swiftly.
1. Troubleshooting When the Heater Fails to Power On
The most fundamental step is to verify the power source. Ensure the heater is properly plugged into a functioning electrical outlet. To test the outlet, connect a different device that you know works correctly. If the outlet is operational, proceed to check the following:
- Ensure the power cord is undamaged and securely connected.
- Confirm that the thermostat is set to a temperature higher than the current room temperature.
- Inspect the circuit breaker or fuse box for any tripped breakers or blown fuses, and reset or replace as needed.
2. Addressing Burning Smells During Initial Use
It is common for new infrared heaters to emit a faint burning odor during their first few hours of operation. This usually results from manufacturing residues or protective coatings burning off. However, persistent or strong odors could indicate accumulated dirt or dust on the heating elements, which can lead to premature wear or potential hazards. To prevent this, regularly clean the heater’s surface and heating elements with a soft cloth and vacuum any dust from vents. Always ensure the heater is unplugged and cooled down before cleaning.
3. Managing Overheating and Thermostat Issues
If your heater becomes excessively hot and shuts down, it may be due to thermostat malfunction or overheating. To prevent this, set the thermostat to a moderate temperature and allow the unit to reach a comfortable level gradually. Consider using models equipped with digital thermostats for more precise control. Always avoid plugging the heater into extension cords, as these can cause overheating and pose fire risks. Instead, plug directly into a suitable wall outlet.
4. Warm Power Cords and Electrical Connections
A power cord that feels warm to the touch is often a sign of resistance caused by loose fittings or aging cords. Check if the plug fits snugly into the socket, and inspect the cord for signs of wear, fraying, or damage. Replace damaged cords immediately to prevent electrical hazards.
5. Circuit Breaker Trips and Electrical Overloads
Repeated tripping of the circuit breaker may suggest an overload, often due to too many appliances sharing the same circuit. Reduce the load by unplugging other devices or relocating the heater to a dedicated outlet. If the breaker continues to trip after ensuring proper load, inspect the fuse and replace if necessary. Persistent issues might require professional electrical assessment.
6. Heater Turns On But Fails to Function Properly
If your infrared heater powers up but doesn’t produce heat or seems to malfunction, examine these components:
- Clean the front grill to remove dust and debris, ensuring unobstructed airflow.
- Inspect and clean the internal fans and air filters, following the manufacturer’s instructions.
- Check the rear vents for dirt or blockages, vacuum or wipe them clean.
Allow the fans some time to start after powering on. If they remain non-functional, consider replacing faulty fan motors or external fans to assist in heat distribution.
7. When the Heater Cycles On and Off Frequently
This behavior often indicates insufficient airflow or a malfunctioning thermostat. Remove nearby obstructions such as furniture, drapes, or plants that could hinder air circulation. If issues persist, examine and replace defective switches or control cables.
8. Heater Fails to Turn Off When Desired
Prolonged operation or failure to switch off may result from the heater being oversized for the space or poor insulation. Solutions include insulating external walls, sealing gaps around doors and windows, or adding an extra heater in larger rooms to distribute heat evenly.
9. Inadequate Heat Distribution and Circulation
If heat isn’t circulating effectively, check the operation of the internal fan. Clean the fan blades carefully after turning off the unit. Replace faulty fans or utilize external fans to improve airflow and maintain consistent warmth.
10. Cold Air Blowing from the Heater
This can happen if the heater is set to a fan-only mode or if digital thermostats temporarily blow cool air after reaching the set temperature. Verify the mode settings and ensure the unit is in heating mode. Digital models may blow cooler air momentarily to stabilize temperature readings.
11. Fan Malfunctions and No Heat Production
If the fan isn’t operating, inspect the switch, motor, and wiring connections for damage or obstruction. Clear any debris from the fan blades. Use a volt-ohm meter to test the motor’s electrical continuity. Replace the motor if it’s defective.
12. No Heat Despite Fan Functionality
This issue often points to a faulty heating coil or loose wiring. Turn off the unit, dismount if wall-mounted, and carefully inspect the control panel and wiring connections. Tighten any loose wires or replace damaged coils to restore heating performance.
13. Red Glowing Light in Darkness
Some infrared units have indicator lights that glow red when powered on or in standby mode. If the unit glows without any apparent reason, check for malfunctioning power lights or indicator LEDs. If the glow persists without functionality, consult a technician.
14. Unusual Sounds During Operation
It’s normal for certain models, such as Quartz and Radiant heaters, to emit crackling or popping sounds as the heating elements expand with heat. These noises are typical and not indicative of malfunction.
Resetting Your Infrared Heater Safely
In case of an overheat shutdown, infrared heaters feature built-in safety mechanisms that turn off the unit automatically. To reset:
- Immediately switch off the heater’s main power switch.
- Unplug the unit and allow it to cool down for approximately five to ten minutes.
- Once cooled, plug the heater back into the outlet.
- Turn the heater on and check for normal operation.
If the problem persists, perform a master reset by unplugging the unit, pressing and holding the main power button, then plugging it back in while continuing to hold the button for about five seconds. Release the button afterward, and the heater should operate normally.
Conclusion: Effective Infrared Heater Troubleshooting
Most common infrared heater issues can be resolved using these troubleshooting steps. Regular maintenance, including cleaning filters, vents, and fans, can prevent many problems. However, for persistent or complex issues, it’s advisable to consult professional technicians to ensure safety and proper repair, especially when replacing internal components.
Related articles for further reading include: Radiant vs Infrared Heater: What’s The Difference? and 5 Best Infrared Patio Heaters.