Quck answer
1. Check the power supply: Ensure that the light is connected to a working power source. Check the circuit breaker and replace any blown fuses.
2. Inspect the bulbs: Replace any burnt-out bulbs. Make sure to use the correct wattage and type for your fixture.
3. Clean the fixtures: Remove any dust or debris from the light fixtures and reflectors. Dirty fixtures can reduce light output.
4. Examine the ballast: The ballast controls the flow of electricity to the bulbs. If it is faulty, replace it with a compatible one.
5. Test the starter: Fluorescent lights often have a starter. If it fails, replace it and ensure it is properly seated.
6. Consider replacing the entire fixture: If all troubleshooting steps fail, it may be time to replace the entire fixture.
Having to stay in a room with a flickering fluorescent light can be quite unpleasant. It not only creates an eerie atmosphere but can also lead to a severe headache. Many people opt for fluorescent lights because they are energy-efficient, which helps save money. These lights are commonly found in kitchens, offices, department stores, hospitals, and warehouses. Compared to incandescent lights, fluorescent lights consume less energy and can result in up to 40 percent savings on energy bills. However, dealing with a flickering light can be frustrating, so it’s essential to know how to troubleshoot any problems you may encounter with fluorescent lighting.
How Fluorescent Lighting Operates
If you were to open up a fluorescent light (which is not recommended), you would discover a powdery substance known as phosphor powder. Fluorescent lighting functions by causing gases and mercury vapor to react within a glass tube, producing an invisible UV light. This UV light then causes the phosphor powder to emit a white fluorescent light.
The Ballast
In addition to the tubes typically used for fluorescent lighting, this type of lighting also requires a component called a ballast. A ballast is a rectangular box that is responsible for controlling and regulating the output of the fluorescent lights. Various types of ballasts are available, allowing you to choose one that suits your lighting requirements. Some ballasts can function as dimmers, while others can regulate the light output of different fixtures. For instance, you might want to dim or switch off half of your lights at a specific time. A multi-ballast system can accomplish this and help save a significant amount of energy in the process.
Troubleshooting a Flickering or Defective Fluorescent Light
If your fluorescent light has burned out or is flickering, there are four things to check in the following order:
Power: Although it may seem obvious, it is always wise to check your power source first if your light is not working. There might be a blown fuse, so inspect your circuit breaker. If the power is functioning correctly, proceed to examine the starter or the tube.
Starter: Most newer fluorescent bulbs do not have starters, but if yours does, it could be the source of the problem. To replace the starter, turn off the power, remove the tube, twist the starter clockwise, and pull it out. Insert a new starter, reinsert the tube into its sockets, and then restore the power. If this step does not resolve the issue, move on to replacing the tube.
Tube: If there is a cover over the tubes, remove it and inspect the tubes with the lights on. A dying tube often exhibits a black band on one side. (If the black band is evident, try replacing the tube before replacing the starter.)
Turn off the power, remove the failing tube, and replace it with a new one. This should eliminate the flickering and resolve the problem. If the issue persists, consider replacing the other tube in the fixture, even if it appears to be in good condition. It may not display visible signs of a black death band yet, but it could be nearing the end of its lifespan.
Ballast: If the above steps do not resolve the problem, it is necessary to replace the ballast. Sometimes, it may be more cost-effective to replace the entire fixture instead of just the ballast. You can weigh the cost against your preference for the current fixture.
If you make the decision to replace the ballast, ensure that you bring your previous one to the store so that you can obtain the correct replacement. Magnetic ballasts are the older models, and if you possess one of those, you may want to consider paying a little extra for an electronic ballast. One benefit? You will eliminate that familiar humming sound from fluorescent lights. Electronic ballasts also have a quicker start-up time. Any ballast that you purchase will include a diagram and instructions that will guide you through the installation process.
Recycle when Replacing
If you find yourself either replacing a tube or getting rid of your old fixture, it is essential to recycle the tubes because they contain mercury. If you throw one of the tubes into regular trash, it has the potential to break and release a hazardous substance into the environment. There are local options available for recycling this specialized item. Perform a quick online search or contact your city’s waste management and recycling department to ensure the safe disposal of your fluorescent bulbs.
