So you need to replace the soldering iron on your Atten 8502D Soldering Station. You could just buy the heating element, but you can find a complete soldering iron with cable for less than $12 on eBay, or for a little more on Amazon. so I’ts easier just to replace the whole thing.
It Doesn’t Work!
I have ordered replacement irons before (I’m very rough with my soldering station) just to find out that they don’t work. You get the dreaded S-E or H-E message on the display and obviously something is wrong. What do you do now? Read on to find out.
How to Make It Work
Usually the soldering iron has the wrong pins soldered in the connector. The eBay listing says that it works with Atten 8502D, but obviously it doesn’t. So time for some testing.
Unscrew the tip of the soldering iron so you can pull out the small PCB inside the handle. The heating element has two coloured wires and two white ones.
The white cables are for heating and the coloured ones are the temperature sensor. Use the continuity tester on you multimeter and check that the white cables are attached to the leads that goes to pin 5 & 6. The polarity doesn’t matter because it’s AC.
Then use the ohm setting on your multimeter between the two coloured wires. The resistance should go up when you hold your hands on the heating element and settle down again when blowing on the element. If it does, you know that you have a working heat sensor in the heating element.
These two wires should be connected to pin 1 and 2. So do a continuity test to find out which pins they are attached to. Finally you have to open the connector and move the cables to the correct location.
Atten 8502D Pinout
So here is the pinouts of the Atten 8502D Soldering Station.
- Heater Element
- Heater Element
- Center pin: GND
On my latest soldering iron, the +temp pin was soldered to pin 3, so all I had to do was to move it to pin 2. Finally a working soldering station again.