How to deal with electric soldering iron leakage
The main cause of electric leakage in soldering iron is caused by the leakage of the soldering iron core.
The soldering iron core is composed of an electric heating wire, an insulation layer support, and an insulation layer. When the insulation layer is damp or aged for too long, the insulation degree may decrease, leading to leakage of the soldering iron core. Then, it is transmitted through the heat transfer shell of the electric soldering iron and the soldering iron head.
The handle of an electric soldering iron may also experience leakage faults after excessive aging and specialization.
After the electric soldering iron leaks electricity, the problem is very serious and can easily cause electric shock accidents, which poses great harm to personal health and electronic and electrical equipment to be repaired. Please immediately replace the soldering iron core and leakage components, and if necessary, replace them as a whole.
How to deal with electric soldering iron leakage
1. First, set the multimeter to the AC voltage range, with the black probe grounded and the red probe connected to the soldering iron tip. Observe whether the multimeter has a reading. If there is a reading, it indicates that the soldering iron is leaking electricity and needs to be repaired.
3. Remove the burnt out resistor and replace it with a new one. Note that although the resistance value of this resistor is 0 ohms, it serves a protective purpose. Do not short-circuit it here!
4. After replacement, use a multimeter to confirm the resistance value between the remote ground measurement of the resistance and the ground.
5. After the repair is completed, use a multimeter to confirm the resistance value between the soldering iron tip and the ground wire. If the resistance value is within 2 ohms, it indicates successful repair.
