What if the hotel number light doesn't work?

How to deal with the problem that the hotel number light is not on: first cut off the power supply to check the line, and then carry out the shop opening test; LED returned to the factory for repair or direct replacement; Plug the bottom cable tightly and replace the circuit board.

The reason why the display light is not on: the display light of the hotel electronic house number is not on, which is one of the common electrical faults. Even the evaluated hotel electronic house number will have such a fault. The reasons for this failure are nothing more than four aspects: (1) wrong wiring during installation; The LED lamp is damaged; The bottom shell falls off and the laying line is not tight enough; The circuit board is burnt out.

Implement inspection steps

1. When checking luminous characters, professionals are required to disassemble them and workers are required to wear gloves. When disassembling luminous characters, the operator must wear pure cotton white gloves. Because hand sweat contains oil, salt, acid, alkali and other ingredients, it is corrosive. Sticking to stainless steel will slowly corrode the surface of stainless steel and make the surface of stainless steel slowly fade and change color.

2, pay attention to safety, line safety, check the need to cut off the power supply, unplug the plug, disconnect the power supply, it is forbidden to use leakage protector as the power switch, and then check the original electrical appliances, it is forbidden to operate with electricity; Need to check carefully, such as the power cord into the hole, ballast input and output terminals, the wires on the lamp holder and so on.

3. Check whether the power cord at the upper part of the luminous word is in the power access slot. If not, correct it, plug in the power plug and turn on the main power switch to see if the light is normal. If there is a phenomenon that one side is bright and the other side is not, please disconnect the power supply and unplug it first, and check whether the lamp cap wire and lamp tube are loose. Whether the input and output lines of ballast are loose, etc.

4. Handle with care. Luminous characters are generally large, so it is necessary to pay attention to the angle of handling and handling. When disassembling and assembling the blister luminous character frame, it must be handled with care, and collision and distortion are prohibited. Lay the frame flat on the ground. Handle it with care, lift it flat and hang it flat, then close the lower part of the luminous word and fix it with hexagon socket head screws.

5. The whole luminous word is not bright. Please check whether the leakage protector is closed, whether the wire connector in the plug is loose and whether the input and output connectors of the ballast are loose.