how to fix fluorescent lamp？
The fluorescent lamp can normally work when the wiring is correct. If there is a fault, the repair is also relatively simple. You can repair it with an electric pen on hand.
1、 The light is not on and the filament is not red
Cause of fault: The circuit is not connected, or some parts are damaged.
Use an electric pen to check whether there is an open circuit in the line according to the incoming order of the live line. Check the wiring of switch, ballast and starter in turn. A screwdriver can be used to short circuit the two connectors of the starter instantaneously to determine whether the starter is damaged, because this operation has the same effect as the jumping of the neon tube. If the starter is damaged, replace the starter. Otherwise, other parts of the line may be open. In addition to the above reasons, you can also check whether the ballast is broken internally, and whether the filament of the lamp tube is open. After finding the fault, try to repair or replace it.
how to fix fluorescent lamp？
2、 The filament at both ends of the fluorescent lamp is red and the lamp tube is not lit
Fault cause: neon bubble in the starter is short-circuited or capacitor is short-circuited.
The neon bubble or capacitor in the starter is open circuit, so that the power voltage is added to the filament at both ends of the fluorescent lamp, but the fluorescent lamp cannot be turned on. During maintenance, a simple method can be used to immediately prove whether the starter is damaged. As long as the starter is removed, the fluorescent lamp will light up at the moment of removal (that is, the moment of disconnection), or a screwdriver can be used to short circuit the two contacts of the starter socket at the moment, and the fluorescent lamp will light up. This proves that the starter has been damaged and should be replaced.
how to fix fluorescent lamp？
3、 The ballast makes a loud AC noise
Fault cause: silicon steel sheets of ballast are loose.
The ballast should be replaced with a new one. If you have maintenance experience, you can remove the ballast, insert the gap between silicon steel sheets with silicon steel sheets of the same specification, and insert them tightly. After repair, the communication noise can be eliminated.
how to fix fluorescent lamp？
4. After the switch is disconnected at night, the fluorescent lamp still has a slight light
Fault cause: the live wire and the zero wire are connected incorrectly during wiring.
When the live wire of the power supply incoming line is wrongly connected, the live wire is terminated to the lamp tube. Even if the switch is disconnected, the fluorescent lamp tube will still light slightly for a long time at night. At this time, just connect the live line and the zero line of the power incoming line, and the fault will be eliminated.
how to fix fluorescent lamp？
5、 The fluorescent lamp turns on and off, the starter starts frequently, or the lamp tube flashes seriously, or the bright area in the lamp tube rolls
Fault cause: The fluorescent lamp tube is aging, and the starter cannot be started.
The quality of the fluorescent tube is poor, or the pressure drop of the tube increases after using for a long time, resulting in the failure of the starter to start, so the fluorescent tube should be replaced with a new one.
how to fix fluorescent lamp？
6、 The ballast is hot and has a burning smell
Fault cause: there is a short circuit in the inner coil of the ballast
In case of this fault, the switch must be disconnected in time and the ballast of the same specification must be replaced to avoid burning the fluorescent lamp.