: Designed for sensitive electronics assembly and rework.
: You must remove the three air pump fixing screws located at the bottom of the unit before first use to prevent damage and excessive noise.
Use your multimeter to test the pins on the iron handle's plug: Gordak 952 Service Manual
: Both the soldering iron and the hot air blower can be used simultaneously without interference. Internal Schematic & Layout
Possible air pump blockage or a faulty air pump diaphragm. 4. Step-by-Step Repair Guide : Designed for sensitive electronics assembly and rework
The Gordak 952 uses a (GX12-5) for both iron and hot air. Refer to this pinout for repairs:
The may be hard to find in one official PDF, but the collective knowledge from reverse-engineered schematics, community forums, and this guide gives you everything you need. Whether you are replacing a blown triac, recalibrating the temperature offset, or rewiring a broken handpiece cord, the key is understanding the basic topology: op-amp feedback + triac power control. Internal Schematic & Layout Possible air pump blockage
| Symptom | Likely Cause (Per Manual) | Fix | | :--- | :--- | :--- | | | Blown fuse (F1) or broken power switch. | Replace fuse. Check bridge rectifier for shorts. | | Hot air not heating | Blown thermal fuse (in handle) or dead heater coil. | Disassemble handle. Replace 184°C thermal fuse. | | Hot air always on max | Shorted TRIAC (BT136). | Desolder TRIAC. Test with multimeter. Replace. | | Display shows "S-E" | Sensor error. Thermocouple broken or unplugged. | Check connector JST-XH. Repair broken wire in wand. | | Iron tip gets red hot | Shorted MOSFET/Relay. Triac stuck closed. | Replace the BT139 or relay controlling the iron. | | Fan runs slow or erratic | Failed 24V Zener diode or dried capacitor. | Replace 470µF 35V cap on fan supply line. |
: The station must be properly grounded to prevent static discharge that could damage sensitive components.