Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your labwork 16-inch Electric Radiator Fan with Thermostat Wiring Switch Relay Kit. Please read these instructions carefully before installation and use to ensure proper function and safety. This fan is designed for use in automobile air conditioning heat dissipation systems and other classic or modern vehicle cooling applications.
Product Features
- 16-inch Reversible Design: This 12-volt electric cooling fan features a 16-inch diameter and is reversible, allowing for push or pull airflow configurations.
- High Airflow: Operates at 3000 revolutions per minute (r/min), providing strong airflow for efficient cooling.
- Durable Motor: Equipped with a high-quality copper wire motor, offering good conductivity, high temperature resistance, and a long service life.
- Robust Construction: Features a strong, thickened iron frame designed to withstand impact and prevent deformation.
- High Precision Bearing: Incorporates a high-precision bearing for high speed, low noise operation, and fast heat dissipation.

Image: The labwork 16-inch electric radiator fan highlighting its premium performance, quality materials, and stable operation.
What's in the Box
Your package should contain the following items:
- 1 x 16" Electric Radiator Fan
- 1 x Thermostat Wiring Switch Relay Kit

Image: All components included in the labwork 16-inch electric radiator fan kit, including the fan, thermostat, wiring, and relay.
Setup and Installation
Important: Professional installation is highly recommended. Improper wiring or installation can lead to damage to the product or vehicle, and may pose a safety risk. If you are unfamiliar with automotive electrical systems, consult a qualified mechanic.
General Installation Steps:
- Safety First: Disconnect the vehicle's battery before beginning any electrical work. Allow the engine to cool completely.
- Mounting the Fan:
- Determine the optimal mounting location on your radiator. The fan can be configured for either push (mounted in front of the radiator, pushing air through) or pull (mounted behind the radiator, pulling air through) operation.
- Use the provided mounting hardware to securely attach the fan to the radiator. Ensure there is adequate clearance for the fan blades.
- Note: The fan's rotation direction can be reversed by swapping the positive and negative power wires. Do not physically turn the fan around if you need to reverse airflow; adjust wiring instead.
- Wiring the Thermostat and Relay Kit:
The kit includes a thermostat switch and a relay for automatic fan operation. A typical wiring setup involves:
- Connecting the fan's power wires to the relay.
- Connecting the relay to a fused 12V power source (e.g., directly from the battery or an ignition-switched source).
- Connecting the thermostat switch to the relay's trigger input. The thermostat should be installed in a location that accurately measures engine coolant temperature (e.g., in the radiator fins or a coolant hose).
- Ensuring proper grounding for all components.
Refer to the general wiring diagram below for guidance. Specific vehicle applications may require modifications or additional components. Online resources and vehicle-specific forums can provide more detailed wiring schematics for your particular setup.
- Secure Connections: Ensure all electrical connections are tight, insulated, and protected from heat and moisture.
- Test Operation: Reconnect the battery. Start the engine and allow it to reach operating temperature to verify the fan activates correctly via the thermostat.

Image: A general wiring diagram illustrating the connections for the electric radiator fan, thermostat switch, and relay. This diagram serves as a guide; consult vehicle-specific resources for precise wiring.

Image: Front and rear views of the fan, demonstrating its reversible design for push or pull airflow configurations.
Operating Instructions
Once properly installed and wired, the labwork electric radiator fan operates automatically based on the thermostat settings. The fan will activate when the engine coolant reaches the set temperature, drawing or pushing air through the radiator to cool the engine, and will deactivate once the temperature drops below the threshold.
- Automatic Operation: The thermostat controls the fan's on/off cycle to maintain optimal engine temperature.
- Monitoring: Regularly monitor your vehicle's temperature gauge to ensure the cooling system is functioning correctly.
Maintenance
To ensure the longevity and optimal performance of your electric radiator fan, follow these maintenance guidelines:
- Regular Inspection: Periodically check the fan blades for any damage, cracks, or debris accumulation. Clean as necessary.
- Wiring Check: Inspect all wiring and connections for signs of wear, corrosion, or loose terminals. Ensure insulation is intact.
- Mounting Security: Verify that the fan remains securely mounted to the radiator. Tighten any loose fasteners.
- Cleanliness: Keep the fan and surrounding radiator area free from dirt, leaves, and other obstructions that could impede airflow.
Troubleshooting
If you experience issues with your electric radiator fan, consider the following common symptoms and potential causes:
| Symptom | Possible Cause | Solution |
|---|---|---|
| Engine Overheating | Fan not activating, insufficient airflow, coolant issues. | Check fan wiring, thermostat, relay, and fuse. Ensure fan is spinning in the correct direction (pulling air through radiator). Verify coolant levels and system integrity. |
| Poor A/C Performance | Condenser fan not operating or insufficient airflow. | Ensure the fan is properly wired to assist with A/C condenser cooling. Check for obstructions to airflow through the condenser. |
| Fan Not Activating | Blown fuse, faulty relay, incorrect wiring, defective thermostat, motor failure. | Check fuse in the power line. Test the relay. Verify all wiring connections. Test the thermostat for proper operation. If all else fails, the fan motor may be faulty. |
| Unusual Noise or Vibration | Damaged fan blade, loose mounting, debris in fan, worn bearing. | Inspect fan blades for damage. Check mounting bolts for tightness. Remove any debris. If noise persists, the fan bearing may be worn, requiring replacement. |

Image: Visual representation of common symptoms indicating a cooling fan failure, such as engine overheating and poor air conditioning performance.
Specifications
| Feature | Detail |
|---|---|
| Fan Diameter | 16 inches |
| Operation Mode | Electric |
| Coil Voltage | 12 Volts |
| Wattage | 120 watts |
| Current Rating | 2 Amps |
| Maximum Switching Voltage | 12 Volts |
| Minimum Switching Voltage | 12 Volts (DC) |
| Number of Terminals | 2 |
| Product Dimensions | 16.93 x 16.14 x 3.54 inches |
| Item Weight | 5.39 pounds |

Image: A diagram showing the dimensions of the 16-inch electric radiator fan, including its diameter and thickness.
Warranty and Support
Warranty Period: This product comes with a 90-day warranty period from the date of purchase.
Customer Support: If you have any questions regarding the product, installation, or require assistance with troubleshooting, please contact labwork customer service. Refer to your purchase documentation or the seller's information for contact details.
For further information or to explore other labwork products, visit the official labwork Store on Amazon.





