When your lamp starts blinking or completely stops burning, then before repairing the entire lamp completely, you should check the lamp on the lamp where you think it works. If the light bulb does not work on the working lamp either, then you should change the light bulb, and if, nevertheless, the light bulb does not light up now, then you should look for the reason in the lamp itself.
The problem here may be, both in the cartridge, as well as in the plug or cord. The fault should be sought, starting a little from the end point, in our case, from the cartridge. To begin with, disassemble the entire cartridge so that you can see the bare wires, but before that, it is imperative to turn off the lamp from electricity. To do this, you must unplug the plug from the outlet or by turning off the machine of this circuit.
You need to check the connections in the plug and in the cartridge. In the case when it is a lamp that is plugged into a socket, they must be clamped very tightly and they must not have visible damage. It is necessary to check if there is an open circuit in the cord, as you may have read in other articles, and the last thing to do is to check the contacts of the cartridge in order to make sure that it is in working condition.
In order to be able to check the cartridge, it should be removed from the lamp, while disconnecting it from the wires. After the cartridge is already disconnected in your hands, you need to connect the tester clamp with a metal thread where the bulb is screwed in, and the second contact of the tester needs to touch the zero contact of the cartridge (where the wire was connected). When you are not sure which of the two contacts will be zero, then you should touch them in turn. If there is a serviceability of this circuit, the light on the tester will flash. After that, if you have already made sure that the circuit is working, you need to check the second one by transferring the clip (crocodile) to the central contact of the cartridge, with which the lamp has contact.
If your cartridge has a switch, then it should be checked in the following way. First, connect the clamp to the contact of the circuit where the switch is located, most often it is a phase circuit, and the other end of the tester needs to touch the central contact of the cartridge, as well as during the test without a switch. After the tester is connected, click the switch to the on position, and then to the off position. So, in a state of turning on, the tester should light up, confirming the fact that this circuit and the switch operate, and in the opposite case, change the cartridge.
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