Common faults and solutions for street lamp maintenance in 2025

1. The circuit and power supply are faulty ‌

‌ The contactor is damaged or the line is aged solar street lamp ‌



Damage ‌phenomenon ‌: street light is not bright, regional power failure (such as the case of Nanjing West Road due to knife contactor damage led to the failure of the south street light).

Maintenance method ‌‌:Check switches, controllers and line connections, repair loose or corroded joints;

Replace damaged contactor or transformer fittings.

‌Short circuit or trip ‌damage ‌ : frequent circuit tripping (" the first road repair lamp failure, tripping "problem).
Maintenance method ‌‌ :Check  solar street lamp the cable insulation layer damage, rainwater infiltration and other short circuit points, re-bandage or replace the line;

Install a leakage protector to prevent safety hazards ‌.

2. The lamp and light source are faulty ‌
‌ bulb burned out ‌

Damage ‌ : single lamp or local light is not bright (common in traditional sodium lamp, LED lamp) ‌.
Maintenance method ‌‌ :Replace bulbs with the same specifications to avoid secondary damage caused by power mismatch ‌;
Check whether the driver power supply is normal (for example, the LED module voltage is abnormal) ‌.
‌Abnormal brightness of the light source ‌

Damage ‌ :  solar street lamp flashing or insufficient brightness (mostly due to controller failure or voltage instability) ‌.
Maintenance method ‌‌ :Test the output parameters of the controller and replace the faulty controller ‌;
Calibrate the optical sensor to avoid false triggering caused by ambient light interference ‌.

3. New energy street lamp unique fault ‌
‌ solar street lamp is faulty ‌ damaged

solar street lamp Battery aging ‌ : reduced storage led to insufficient night battery life ‌;
Replace the battery of the same model and ensure that the voltage matches ‌.
Photovoltaic panel damage ‌ : surface dirt, cracks or Angle offset affect the charging efficiency ‌;
Periodically clean the panel, adjust the installation Angle, and replace the damaged panel ‌.
Wind street lamp malfunction ‌

Solar street lamp mechanical failure ‌ : fan blade stuck or bearing damage resulting in not turning ‌;
Lubricate mechanical parts and replace damaged bearings or gears ‌.
Environmental factors ‌ : lack of wind or extreme weather affecting operations ‌;
Optimize site selection or install auxiliary energy sources (such as wind-solar complementary systems) ‌.

4. Structural and ancillary facilities ‌
Lamp pole and shade damaged ‌

Phenomenon damage ‌ : rust, dumping or external impact deformation ‌;
Maintenance method ‌‌:Strengthen the base and replace the anti-corrosion materials (such as hot-dip galvanized steel rods) ‌;
Repair damaged lamp shade, ensure waterproof tightness ‌.
‌Intelligent system failure ‌

‌Damage:  solar street lamp remote control failure, data return abnormal (such as intelligent street lamp networking failure) ‌;
Maintenance method ‌ : solar street lamp Check the compatibility between communication module and network protocol, and update firmware ‌;

Repair sensor cables or replace faulty components ‌.