No display on LCD after startup:

在没停电的状况没有显现，可能是电源线有问题，查看电源线路反是不是有短路了，假如是保险管烧毁，只需改换异常规格的保险管就行了。

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.

开机有LCD显现，但是焊接无反响：

LCD displays when starting up, but there is no response during welding:

查看中频点焊机的充电保险管能否烧毁了，肯定后改换异常规格的保险管应该就能够处置。

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.

有电源指示，无焊接火花：

With power indication and no welding spark:

很多缘由都会招致这种状况的发作，比方说：焊接参数调理不正确、电极磨损过渡、电极下端面与电池距离过、;焊接开关损坏、光电开关损坏等等。

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.

焊点不牢的现象：

Loose solder joints:

检查电极头外形、截面能否适宜。?普通焊板的时分会呈现中频点焊机越来越难用的状况，就是思索可能是电极太热，电阻过大。

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.

焊点压痕严重并有挤出物：

Severe indentation and extrudate on the solder joint:

指的是焊接完成以后外表烧伤严重，有弧坑，检查电流能否过大或压力能否太小，电流过大会影响焊接工件的外表焊接效果，压力太小会呈现挤出物。

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.

焊接时容易打火，以烧焦电池外壳：

It is easy to ignite during welding, and even scorch the battery shell:

中频点焊机电极压力偏小、电极下端面粘有异物、焊接电流过大、两电极高度不在同一水平面。

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.