Why the UV disinfection lamp does not turn on?

First, the reason why the ultraviolet disinfection lamp does not turn on and does not heat up and how to repair it

1. If the transformer is burnt out, the circuit is broken or the lead welding is loose, use the multimeter to check whether the circuit is connected, replace or weld it.

2. The circuit board is burned out, check whether there is a short circuit, and replace the circuit board.

3. There is no electricity or poor contact in the power socket. Check if there is electricity or replace the socket.

4. The copper wire in the circuit board is corroded and broken, check, replace or weld the circuit board.

5. The power cord is in poor contact with the body or is disconnected. Check whether the line is connected and repair it.

6. If the relay is out of order or in poor contact, replace the relay or replace the repair connector.

7. The fuse is burned out, replace the fuse,

Second, the reason why the ozone tube and ultraviolet lamp of the disinfection cabinet do not work and the maintenance method

1. The cabinet door is not closed properly, close the cabinet door.

2. The door switch is in poor contact, adjust the contact status of the door switch or replace the door switch.

3. Circuit failure, check the circuit failure.

Third, the reason for the long disinfection time of the disinfection cabinet and the maintenance method

1. The cabinet door is not closed tightly and the door seal is deformed. Adjust the fixing screw of the door hinge seat or replace the door seal.

2. The resistance wire of the heating tube becomes thinner, and the power of the resistance increases and the power decreases. Observe the brightness of the heating tube. Under normal conditions, the heating tube on the back is slightly red, and the heating tube at the bottom is bright red.

3. The thermostat fails, replace the thermostat.

4. Install the wrong heating tube, press the bottom and back to reinstall the heating tube.

5. With low voltage, install a voltage stabilizer.

6. There are too many and too dense tableware stacked in the cabinet, and the number and density of the whole food utensils.

7. One quartz heating tube is burned out, replace the quartz heating tube.

Fourth, the reason for the short high temperature disinfection time of the disinfection cabinet and the maintenance method

1. The upper thermostat and the lower thermostat are installed incorrectly, change the position of the thermostat.

2. The upper and lower heating tubes are installed incorrectly, and the upper and lower heating tubes are replaced.

3. The food utensils are stacked and placed beside the door, and the food utensils are evenly placed on the shelf, leaving gaps between each other.