Repair method for electric soldering iron that is not hot after being powered on
Regarding the maintenance methods of electric soldering irons, when there is a malfunction in the electric soldering iron, it must be repaired and dealt with in a timely manner to ensure the normal use of the electric soldering iron. Here is a summary of the maintenance methods for the electric soldering iron that is not hot after being powered on and the soldering iron head that is charged, for your reference.
Repair method for electric soldering iron that is not hot after being powered on
1. When the electric soldering iron is powered on, the soldering iron head is not hot, usually due to the power cord falling off or the soldering iron core wire breaking.
Repair method: Use the R of a multimeter × When measuring the two ends of the power plug at the LKN gear, the multimeter pointer does not move, indicating an open circuit fault.
2. Firstly, check if there is an open circuit in the lead of the plug itself. If not, remove the bakelite handle and use a multimeter to measure the two leads of the soldering iron core. If the multimeter pointer still does not move, it indicates that the soldering iron core is damaged and should be replaced.
3. The resistance value between the two leads of a 35W internally heated soldering iron core is about 1. Skfl. If the measured resistance value is normal, it indicates that the soldering iron core is not faulty. The fault occurs in the power lead and the plug itself, and most of the faults are due to open circuit in the lead.
Repair method: Replace the soldering iron core, insert a new soldering iron core of the same specification into the connecting rod, fix the lead on the fixing screw, and tighten the wiring post. At the same time, pay attention to cutting off the excess part of the soldering iron core lead to prevent short circuit between the two leads.
Maintenance method for live soldering iron head
The reason for the electrification fault of the soldering iron head is not only that the power cord is wrongly connected to the grounding wire terminal, but also that when the power cord falls off the soldering iron core terminal and touches the screw of the grounding wire, causing the soldering iron head to become electrified.
Fault hazard: It is easy to cause electric shock accidents and damage components.
Maintenance method: To prevent the power cord from falling off, regularly check whether the crimping screw on the electric soldering iron handle is loose or missing. If any looseness or loss is found, it needs to be replaced in a timely manner.
