来源：http://www.tayfsk.com/ 发布时间：2021-12-17 浏览次数：
No display on LCD after startup:
In the case of no power failure, there may be a problem with the power line. Check whether there is a short circuit in the power line. If the fuse is burned, just change the fuse with abnormal specification.
LCD displays when starting up, but there is no response during welding:
Check whether the charging fuse tube of the medium frequency spot welding machine is burned. After confirmation, replace the fuse tube with abnormal specification, which should be able to be disposed of.
With power indication and no welding spark:
Many reasons will lead to the occurrence of this situation, such as incorrect adjustment of welding parameters, electrode wear transition, excessive distance between the lower end face of the electrode and the battery; The welding switch is damaged, the photoelectric switch is damaged, etc.
Loose solder joints:
Check whether the shape and section of the electrode head are suitable.? The time of ordinary welding board will present the situation that the medium frequency spot welder is becoming more and more difficult to use. The first is to think that the electrode may be too hot and the resistance is too large.
Severe indentation and extrudate on the solder joint:
It refers to that after welding, the surface is severely burned and there are arc pits. Check whether the current is too large or the pressure is too small. Excessive current will affect the surface welding effect of the welded workpiece, and extrusion will appear if the pressure is too small.
It is easy to ignite during welding, and even scorch the battery shell:
The electrode pressure of the medium frequency spot welder is too small, foreign matters are stuck on the lower end face of the electrode, the welding current is too large, and the height of the two electrodes is not in the same horizontal plane.