How to repair a fluorescent lamp

How to repair a fluorescent lamp

The lamp equipped with a fluorescent lamp is the device consisting of several interconnected components. Malfunction of any of them can be the cause of its not working capacity. To correct a malfunction, it is necessary to reveal the lamp component which failed.

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Before repair surely disconnect the lamp. If it hung on a ceiling, do not repair it directly there - remove the device and put on a table and that it could be checked, connect a usual network cord to a klemmnik. Do not concern any components of the device when it is switched on in a network.

Having disconnected the lamp, look, whether if in it condensers. Parallel to each of them it has to be connected on the resistor. They discharge condensers soon after removal of the feeding tension. By means of the voltmeter of a direct current be convinced that all of them are discharged, and only after it get to work. Having found out that on this or that condenser the resistor is not present, discharge it a screw-driver with the isolated handle, and then connect parallel to it the resistor with a resistance of 1 megaohm and with power not less than 0,5 W.

If nature of malfunction consists that at turning on of the lamp works the machine gun and all conducting is disconnected, the reason for that is breakdown of that condenser which is connected parallel to a network. Replace it on just the same. Both capacity, and working tension, and type have to coincide. Just in case check for lack of breakdown and other condensers. For check disconnect one of conductors, and also the discharging resistor from the device, then connect an ohmmeter. The arrow has to deviate then right there to return to a starting position. Leak should not be. After check restore all connections.

Break of a throttle (meets seldom), wear of a starter or the lamp can be the cause of lack of inclusion of a lamp. In the beginning check a throttle - simply ring out it an ohmmeter, without concerning probes not to receive blow self-induction tension. If break is not present, in the beginning replace a starter then try to turn on the lamp. Then switch off it and again wait for the category of condensers (at their existence).

In case replacement of a starter did not help, take a lamp and ring out both of its filaments. Having found out that one of them fused, short-circuit it (in lamps with constant heating from separate windings so it is impossible to do). If both threads fused, the lamp is subject to replacement. To short-circuit at once two threads it is not allowed - the throttle will fuse.

There are lamps in which one throttle serves at once two consistently connected lamps, each of which has a separate starter. Such device will work only in case both lamps and both starters are serviceable.

Wear as her, and a starter can be the cause of a blinking of a lamp. To learn what exactly failed, check the lamp at first with obviously serviceable lamp, then with obviously serviceable starter. After each trial inclusion disconnect the device and let's condensers be discharged.

The electronic converter used in new lamps instead of a throttle, replace entirely, and old subject to repair for replenishment of fund of spare parts which can be demanded for restoration of other lamps. The starter in such illuminants is absent. Trust repair of the converter only to the persons possessing the corresponding qualification.