First, check the power failure. Ensure that the power plug of the welding machine has been plugged into the socket, and the socket supplies power normally. You can try to plug the welder into another socket and see if it can be connected normally. If you still can't boot, there may be something wrong with the power cord. It is necessary to check whether the power cord is open or short-circuited, and repair or replace the power cord if necessary.
Secondly, check the switch failure. The welder switch may be in poor contact or damaged, which may cause the machine to fail to start normally. You can try to press the switch several times to see if you can start the welding machine. If it still can't be connected, you can disassemble the welding machine shell, check whether the wiring of the switch is loose or burnt out, and reconnect or replace the switch if necessary.
Check the line fault again. The wiring of the welding machine may be disconnected or short-circuited, which may cause the machine to fail to start normally. You can check whether the wiring inside the welder is loose or burnt out, and reconnect or replace the wiring if necessary. At the same time, you can also check whether the fuse of the welding machine is blown and whether it needs to be replaced.
Finally, if the above methods can't solve the problem, it may be that there is a fault inside the welding machine. At this point, it is recommended to send the welder to a professional maintenance center for maintenance and repair. Maintenance personnel will diagnose and repair the faults of the welder through professional equipment and technology.
In short, when Pengcheng electric welding machine can't be powered on, you can check the power failure, switch failure and line failure first. If the problem cannot be solved, it can be sent to a professional maintenance center for maintenance.