1. Introduction
This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your LEISTER LE3000 Hot Air Heater. Please read this manual thoroughly before using the device and keep it for future reference. The LEISTER LE3000 is a powerful hot air heater designed for various industrial applications requiring precise temperature control and high airflow.

2. Safety Instructions
- Always ensure the device is connected to a grounded power outlet with the correct voltage (230V).
- Do not touch the hot air nozzle or the heated material during or immediately after operation, as severe burns can occur.
- Ensure adequate ventilation in the work area to prevent the accumulation of hazardous fumes.
- Keep flammable materials away from the hot air stream and the device.
- Never point the hot air stream at people or animals.
- Disconnect the power supply before performing any maintenance or cleaning.
- Only use original LEISTER spare parts for repairs and maintenance.
3. Setup
- Unpacking: Carefully remove the hot air heater and any accessories from its packaging. Inspect for any damage.
- Power Connection: Connect the device to a suitable 230V power supply. Ensure the power circuit can handle the 3300W load.
- Air Supply: The device requires a supply of cold air. Ensure the air intake is clear and unobstructed. The control box explicitly states "Air supply with cool air only."

Figure 2: Control box indicating "Air supply with cool air only." - Model Identification:
- LE3000 (101.426): This model features temperature regulation, allowing you to adjust the heat output.
- LE3000 (101.434): This model does not have temperature adjustment capabilities.
4. Operating Instructions
Before operation, ensure all safety precautions are understood and followed.
- Power On: Connect the device to the power supply.
- Adjusting Airflow/Power: Use the dial marked '0 1 2 3' to select the desired airflow or power level. '0' is off, and '3' is the maximum setting.

Figure 3: Control dials for airflow/power (0-3) and temperature (up to 650°C). - Adjusting Temperature (Model 101.426 only): For models with temperature regulation, use the red dial marked '650°C' to set the desired temperature. Rotate the dial to increase or decrease the heat output.
- Operation: Direct the hot air stream towards the workpiece. Maintain a safe distance to prevent overheating or damage to the material.
- Power Off: When finished, turn the airflow/power dial to '0'. Allow the device to cool down before storing.
5. Maintenance
Regular maintenance ensures the longevity and optimal performance of your hot air heater.
- Cleaning: Periodically clean the air intake and exhaust vents to prevent dust and debris buildup, which can impede airflow and cause overheating. Use a soft brush or compressed air.
- Heating Element Replacement: The heating core (e.g., model 101.365) is a consumable part and will eventually need replacement. If the device fails to heat or heats inefficiently, the heating element may need to be replaced. Only use original or compatible heating elements (e.g., universal heating element produced in Shanghai, Switzerland).

Figure 4: Replacement heating element (Article no. 802.354, 3300W/230V). - Inspection: Regularly inspect the power cord for any signs of damage. Check the housing for cracks or other physical damage.
6. Troubleshooting
If you encounter issues with your LEISTER LE3000 hot air heater, refer to the following table:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on | No power supply; Damaged power cord; Internal fault | Check power connection and outlet; Inspect power cord for damage; Contact support if problem persists. |
| No hot air / Insufficient heat | Faulty heating element; Incorrect temperature setting (Model 101.426); Insufficient airflow | Replace heating element; Adjust temperature dial; Check air intake for obstructions. |
| Weak airflow | Obstructed air intake; Fan motor issue | Clean air intake; Contact support for fan motor issues. |
| Overheating / Device shuts off | Blocked air circulation; Prolonged use at maximum settings without adequate cooling | Ensure clear air intake/exhaust; Allow device to cool down; Reduce operating time or power setting. |
7. Specifications
| Feature | Detail |
|---|---|
| Model | LE3000 (101.426, 101.434) |
| Product Power | 3300W / 230V |
| DIY Supplies Category | Electrical |
| Origin | Mainland China |
| Certification | None specified |
| Package Length | 20 cm |
| Package Width | 20 cm |
| Package Height | 30 cm |
| Package Weight | 4.0 kg |
8. User Tips
No specific user tips were available from reviews or Q&A for this product. Always refer to the operating instructions for best practices.
9. Warranty and Support
For warranty information or technical support, please contact your original point of purchase or the seller directly. Keep your purchase receipt as proof of purchase.





