1. Introduction
Thank you for choosing the FDIK V-Series Diesel Air Parking Heater. This manual provides essential information for the safe and efficient operation, installation, and maintenance of your heater. Please read this manual thoroughly before installation and use, and keep it for future reference.
Key Features:
- Durable Aluminum Shell for efficient heat dissipation.
- Energy-saving design with fast heating capabilities.
- Advanced FDIK-C24 External Switch for precise control.
- Temperature and Power Protection features for enhanced safety.
- Variable Frequency Motor for optimized performance.
- High-quality Silicon Nitride Ceramics for fast and reliable heating.
- 309S Material Casting ensures full combustion of fuel.
- Accurate Flow Fuel Pump for efficiency and durability.
- Universal Voltage (12V) compatibility.
- Overheating Protection and Temperature Mode for user comfort and safety.

2. Package Contents
Please check the package contents upon receipt to ensure all components are present:

- Heater Unit (2KW or 5KW)
- Controller x 1
- Remote Controller x 1
- Tubing x 1
- Exhaust Pipe x 1
- Fuel Tank (5KW 8.8L x 1)
- Oil Filter x 1
- 75mm Wind Head x 1
- Air Filter x 1
- Silencer x 1
- Oil Pump x 1
- Buckle x 4
- Wire Harness x 1
3. Installation and Setup
Proper installation is crucial for the safe and effective operation of your heater. Refer to the diagram and instructions below.
3.1 Installation Diagram

Wiring: The positive and negative main wires must be connected to the battery to ensure normal operation of the main unit. The switch connects to the main wire harness.
Air Inlet/Outlet: The air inlet and air outlet must be reserved for air circulation. Ensure they are not blocked. If the air inlet and outlet are too close, they may cause recirculation.
Fuel Pump: The oil pump is preferred to be installed between 15° and 35° from horizontal.
3.2 Recommended Installation Positions
- Truck: 1. On the co-driver's legroom. 2. On the back wall of the cab. 3. Driver's seat backrest. 4. Within the tool box.
- RV: 1. In front of the passenger seat. 2. Between the driver's seat and passenger seat. 3. Under the container. 4. In the trunk.
- 5 Seater / 7 Seater: The heater is mainly installed in the passenger room or luggage room of the vehicle. If it cannot be installed, fix the heater under the underside of the vehicle, but beware of splashing.
- Excavator: 1. Inside the driver's seat. 2. On the back wall of the cab. 3. Inside the protection box.
4. Operating Instructions (C24 Three-Key Digital Controller)

4.1 Quick Remote Matching
When the device is off, press and hold the up and down buttons simultaneously on the controller. The screen will display a 10-second countdown, entering remote control matching mode. Within 10 seconds, press any button on the remote to successfully pair it.
4.2 Operations in Power-On State
- Power On/Off: Press the Power On/Off button once to turn the device on. Press it again to turn it off.
- Air Conditioning Mode (Temperature Mode): While the device is on, press and hold the Power On/Off button for 3 seconds to switch to Temperature Mode, with a range from 10°C to 35°C. Use the Gear Increase and Decrease buttons to set the desired temperature. The set temperature must be higher than the current ambient temperature. When the device reaches the set temperature, it will reduce to a lower combustion speed. If the temperature is not reached, the device will increase the combustion speed to meet the set temperature.
- Power Mode: In Air Conditioning Mode, press and hold the Power On/Off button for 3 seconds to switch back to Power Mode. Adjust the power level using the Gear Increase and Decrease buttons, with levels P1 to P5 (5 levels).
4.3 Functions in Power-Off State
- Normal Power-On: In the off state, press and hold the Power On/Off button for 5 seconds. The screen will display "ON". Release the button to power on normally.
- Automatic Oil Pump Start: In the off state, press and hold the Power On/Off button for 5 seconds until the screen displays "Po". Release the button; the ignition plug will preheat for 1 minute before the oil pump starts. Once the oil line is full, the device will automatically ignite and enter normal combustion. If the oil line is not filled after one attempt and the fan is still running, the screen will display "Po" flashing. Press the Power On/Off button again to start a second oil pumping attempt.
- Ventilation Function: Press and hold the Power On/Off button until the screen displays “Fn”. Release the button; the screen will show "F1" to "F5" which can be adjusted to provide ventilation for the cabin.
- Remote Control Matching: Press and hold the Power On/Off button until the screen shows “R1”. Release the button, and within 10 seconds, press any button on the remote to successfully pair it.
- Manual Oil Pumping via Remote: Long press the 5th display icon on the screen of the power key, "rp". Release the button, and the screen will display "20", indicating the function will turn off after 20 minutes. Press the remote's power button to start oil pumping; press the remote's power button again to stop oil pumping. Note: 1. This function does not support ignition. Monitor the oil line and stop pumping once it is full. 2. After using this function, the paired remote needs to be re-matched.
- Language Selection and Do Not Disturb Mode: Long press the 6th display icon on the screen of the power switch, "LA". Release the button, then use the Gear Increase and Decrease buttons to select the language. The screen will display options such as “CH” (Chinese) or "BP" (Silent). Select the desired language by adjusting the knob to set it successfully.
- Emergency Start: If the device switch is damaged, first disconnect three switch wires (black, blue, and red). Short the black and blue wires together at a regular frequency 7 times (1-2-3-4-5-6), then do not release on the 7th time but hold for 1 minute. If the mainboard is not damaged, the device will start normally.
4.4 Advanced Settings
- Setting Temperature Mode and Oil Pump Flow: Disconnect the power switch wire. Then, press and hold the power switch button without releasing it. Next, reconnect the power switch wire. The screen will display "CF" followed by a number. Release the button. Multiply the displayed number by 5 and add 1. For example, if the number displayed is 2, then 2 * 5 + 1 equals 11. Press the up button to select the last digit (in this case, 1), then press the power switch button to enter the settings function.
The first screen that appears is: Power Voltage, which sequentially shows 24V Power, -12V Power, and 0A Automatic Voltage. Press the power switch button to confirm in the 0A state. The voltage will automatically match.
Next, the screen will show 22, which indicates a 22 oil pump. Press the up button to display 28, which indicates a 28 oil pump. Press the up button again to show 0A, which is for automatic oil pump matching. Select the desired oil pump flow rate and press the power switch button to confirm the oil pump setting.
Once the oil pump is set, the screen will display "t5" to indicate the temperature mode shutdown function. "t----" turns off the temperature mode shutdown function. If you want to enable it, in the "t5" state, press the power switch button to confirm.
After all settings are completed, the screen will display "5u" after 5 seconds and then shut down, indicating that all settings are completed. - Clear Current Remote Configuration: Disconnect the switch wires, press and hold the Power On/Off button, and reconnect the switch wires. The screen will display "CF". Release the button, then press the Power On/Off button to clear the configuration.
5. Maintenance
To ensure optimal performance and longevity of your FDIK Diesel Air Parking Heater, regular maintenance is recommended:
- Regularly check fuel lines for any leaks or blockages.
- Inspect the air inlet and exhaust pipes for obstructions and ensure they are clear.
- Clean the air filter periodically to prevent dust buildup and maintain efficient airflow.
- Ensure all electrical connections are secure and free from corrosion.
- Check the fuel pump for any signs of wear or malfunction.
6. Troubleshooting (FDIK C3 Fault Code Manual)
If you encounter issues with your heater, refer to the fault code table below for diagnosis and solutions:
| Error Code | Problem | Solution |
|---|---|---|
| 0 | Panel failure | Replace the panel. |
| 1 | Ignition failure failed |
|
| 2 | Flame out |
|
| 3 | Incorrect power supply voltage (Under-voltage or over-voltage) |
|
| 6 | Intake air over-temperature |
|
| 7 | Oil pump problem |
|
| 8 | Fan (motor) problem |
|
| 9 | Ignition shorted plug |
|
| 10 | Overheat |
|
| 11 | Overheating sensor failure | Replace the overheat sensor. |
| 12 | Ignition plug open circuit |
|
7. Specifications
Detailed technical specifications for the FDIK V-Series Diesel Air Parking Heater:
| Attribute | Specification |
|---|---|
| Brand Name | FDIK |
| Model Name | FDIK Aluminum |
| Item Type | Heating & Fans |
| Material | Aluminum |
| Fuel | Diesel |
| Voltage | 12V |
| Power (W) | 2000W or 5000W |
| Switch Type | Rotary switch |
| Special Features | Heating |
| External Testing Certification | CE |
| Item Length (5KW) | 40cm (400mm) |
| Item Width (5KW) | 14cm (140mm) |
| Item Height (5KW) | 14cm (140mm) |
| Item Diameter (Outlet) | 7.5cm (75mm) |
| Item Weight | 6.5kg |
| 2KW size | 340*120*120mm |
| 5KW size | 400*140*140mm |
7.1 Performance Data (5000W Model)

| Parameter | Value | ||||
|---|---|---|---|---|---|
| Heater Model | 5000W | ||||
| Heating medium | Air | ||||
| Calorific grade | Super high | Top | Medium | Low | Closed |
| Value (W) | 5000 | 3500 | 2000 | 900 | - |
| Medium flux (kg/h) | 185 | 150 | 110 | 60 | 24 |
| Fuel Consumption (liter/hours) | 0.64 | 0.4 | 0.28 | 0.11 | - |
| Power consumption (W) | 40 | 24 | 13 | 7 | 7 |
| Lower limit of undervoltage | 10.5V/21V | ||||
| Overvoltage limit of undervoltage | 16V/32V | ||||
Note: The data comes from actual factory tests. In actual use, due to the influence of temperature and altitude, the actual data may deviate from the table, which is normal.
8. Warranty and Support
8.1 Warranty Information

- Warranty: One year warranty is provided. Please note that vulnerable parts are not included under warranty.
8.2 Customer Support
For any questions, technical assistance, or support, please contact our customer service:

- WhatsApp: +86 18636417766
Additional item guides and documents, including a PDF user manual, may be available. Please refer to the official product page or contact support for access to these resources: User Manual (PDF)
9. User Tips
Based on common user inquiries and feedback, here are some helpful tips:
- Model Selection: Ensure you select the correct power (2KW or 5KW) for your specific needs. The 2KW model may have slightly different features or accessories (e.g., silencer) compared to the 5KW model. Always verify the product description for your chosen variant.
- Fuel Quality: Using high-quality diesel fuel is essential for optimal performance and to prevent issues like ignition failure or flame out.
- Power Supply: Double-check your vehicle's voltage (12V) and ensure stable power delivery to avoid undervoltage or overvoltage errors.
- Airflow: Keep the air inlet and outlet clear of obstructions to ensure proper ventilation and prevent overheating.