A soldering iron is an essential tool for your soldering tasks. It's very frustrating when it stops working because you can’t carry out your soldering tasks more. AiXun precision soldering will talk with you why the soldering iron does not heat up.
Our commonly used electric soldering irons or soldering stations use heating devices to transfer heat to the soldering iron tip. Finally, the temperature of the soldering iron tip reaches the melting point of the solder and melts the solder to realize the soldering process.
Why the soldering iron tip not heat up? We should check whether the problem is in the soldering station/electric soldering iron. The host and handle of the soldering station must be checked, especially the heating core part. Is there any problem with the installation, or is the heating core damaged? Is the power cable loose?
Soldering irons can take anywhere from a few seconds to several minutes to heat up, depending on the wattage of the iron. Generally, soldering irons with higher wattage will heat up faster than those with lower wattage. A soldering iron with a wattage of 15-30 watts may take up to a minute to heat up, while a soldering iron with a wattage of 50-100 watts may only take a few seconds. It is important to wait for the iron to reach the proper temperature before beginning any soldering job.
If a circuit is broken in your soldering iron, the electricity flow will be affected, and this will make your soldering iron receive less heat. You can conduct a continuity test to determine the cause of the broken circuit. Also, since electrical connections can become loose over time, it is important to inspect them as you dismantle the soldering iron.
There is no heat at all after the power is turned on. This may be that the soldering iron tip or the power cord is damaged. You can measure the resistance between the plugs of the soldering iron power cord with a digital multimeter. Generally, the resistance of a normal electric soldering iron is between 10 ohms and 1000 ohms (the greater the power of the soldering iron, the smaller the measured resistance), if the measured resistance is infinite, it could be considered that soldering iron tip or power cord is damaged, just replace the soldering iron tip or power cord.
The soldering iron is still slightly hot for a long time after power on, and the solder wire cannot be melted. This may be due to the thicker oxide layer attached to the inner wall of the soldering iron tip, which hinders the heat transfer from the soldering iron core to the soldering iron tip. If the soldering iron tip is seriously oxidized and cannot solder normally, it is recommended to replace the temperature controlled soldering station. After all, the quality of the electric soldering iron has a great influence on the welding quality.
Now that you know the reason why your soldering iron might not be heating up and how to address such an issue, it’s essential to know whether this tool needs maintenance.
Because the soldering iron tip gets hot during soldering and, as a result, susceptible to oxidation. As a result, this has a direct impact on its performance since the solder gets affected. Moreover, this device is prone to damage due to repeated heating and cooling.
You must put in place appropriate maintenance measures to prolong the life of your soldering iron. This entails cleaning any old solder, accumulated carbon, and similar debris present on the brass shavings or sponge. By doing this, you’ll free the tip of your soldering iron from accumulated deposits, thereby making it clean and shiny.
You can purchase replacement soldering iron tip from your nearest AiXun authorized re-seller, or you can contact us for inquiry.
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