Repair method of electric soldering iron not hot after power on
1. When the soldering iron is energized, the tip of the soldering iron is not hot, usually because the power cord falls off or the core wire of the soldering iron is broken.
Maintenance method: Use the R×lkn gear of the multimeter to measure both ends of the power plug. If the pointer of the multimeter does not move, it means that there is an open circuit fault.
2. First check whether the lead wire of the plug itself is open circuit phenomenon, if not, you can remove the bakelite handle, and then use a multimeter to measure the two leads of the soldering iron core, if the pointer of the multimeter still does not move, it means that the soldering iron core is damaged, and the soldering iron core should be replaced .
3. The resistance between the two leads of the 35W internal heating soldering iron core is about 1.Skfl. If the measured resistance is normal, it means that the soldering iron core is fine. The fault occurs in the power lead wire and the plug itself. Most of the faults are lead wire breakout.
Maintenance method: Replace the soldering iron core, insert a new soldering iron core of the same specification into the connecting rod, fix the lead wire on the fixing screw, and tighten the terminal post. At the same time, pay attention to cut off the excess part of the soldering iron core lead wire to prevent two Lead shorted.
Maintenance method of live soldering iron tip
The reason for the electrified fault of the soldering iron tip is that in addition to the wrong connection of the power cord to the grounding wire terminal, there is also the fact that when the power cord falls off from the soldering iron core terminal, it touches the screw of the grounding wire, which causes the soldering iron tip to be electrified.
Fault hazard: It is easy to cause electric shock accidents and damage components.
Maintenance method: In order to prevent the power cord from falling off, regularly check whether the crimping screw on the handle of the electric soldering iron is loose or missing. If it is found to be loose or missing, it needs to be replaced in time.
