Basic Troubleshooting Guide For LED Lighting

A practical step-by-step guide to identify and resolve common issues with LED lighting.

Step 1: Identify The Issue

Determine The Nature of The Problem:

• The LED fixture does not turn on.
• Flickering or blinking lights.
• Uneven or dim lighting.
• The light turns off unexpectedly.

Step 2: Check Basic Connections

Check The Driver:

• Ensure that the fixture is getting the correct power.
• Confirm the circuit breaker or switch is in the "on" position.

Check The Wiring:

• Look for loose or disconnected wires in the hardwired fixtures.
• Verify the wall switches or sensors are functioning using another device.

Step 3: Inspect The LED Fixture

Check The Lamps:

• For replaceable LED lamps, ensure that they are properly seated in the lamp holders.
• Swap with a functioning lamp to see if the issue persists.

Check the fixture condition:

• Look for visible damage (burn marks, frayed wires, etc.)
• Look for water exposure if the fixture is outdoors.

Step 4: Address Flickering or Dimming

Check Compatibility:

• Ensure that the dimmer switch (if installed) is compatible with LED lighting.

Check Voltage Issues:

• Measure the voltage using a multimeter. Fluctuations can cause flickering.
• Consult an electrician if voltage is inconsistent.

Step 5: Inspect The Driver

LED fixtures often include a driver (power supply unit). If the driver fails:

• Check for signs of overheating or burnout.

• Replace the driver with a compatible one.

Step 6: Thermal Management

Overheating can cause LEDs to shut down or dim.

• Ensure the fixture is not covered or enclosed inappropriately.

• Allow adequate airflow around the fixture. Insulation should be a minimum of 3 inches away from the fixture unless its IC-Rated.

Step 7: Replace Faulty Components

• Replace any malfunctioning LED lamps or drivers.

• Replace damaged connectors. Consult US LED before any wiring changes to avoid negatively affecting the warranty.

Step 8: Seek Professional Support

If issues persist or involve complex wiring, consult a licensed electrician or contact the US LED Customer Service Team (customerservice@usled.com) to request support.

Preventive Tips

• Use surge protectors to safeguard against power surges.
• Avoid overloading circuits with too many fixtures.
• Regularly clean fixtures to prevent dust buildup and overheating.