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eBay£49.43Visit shop Davies Craig Digital Thematic EWP/Fan Switch - Temp Probe / Thermal Sensor
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The Davies Craig Digital Thermatic EWP/Fan Switch is designed for automotive enthusiasts and mechanics who need precise control over their engine's cooling system. Its key benefit is automatically activating cooling fans or electric water pumps at user-defined temperatures, ensuring optimal engine performance and preventing overheating. A key consideration is that for 24-volt applications, specific 24-volt relays must be purchased separately, as the kit is configured for 12-volt operation. This versatile switch offers adjustable temperature ranges and multiple sensor mounting options for flexible installation.
| Model Part Number | P0445 |
|---|---|
| Brand | Davies Craig |
Press the button on the front of the unit repeatedly to cycle through the temperature settings. The selected temperature will be displayed digitally.
No, this switch is designed to turn electric water pumps (EWPs) on and off only. For speed control, a dedicated Davies Craig EWP/Fan controller is recommended.
The probe sensor is designed to be inserted into the radiator hose or between radiator fins for temperature sensing. The thermatic sensor is designed to screw into a waterway in the engine block, radiator, or a coolant hose (with an adapter).
The kit is configured for 12-volt operation. For 24-volt applications, you will need to replace the two included relays with 24-volt compatible units, which are not supplied with the kit.
Please refer to the product packaging or Davies Craig official website for the most current warranty information, as it may vary.
The switch offers precise digital temperature control within its adjustable range of 40-110°C. Accuracy can depend on the sensor's placement and direct contact with the coolant or airflow.
Yes, the switch can be used to control a single cooling fan or an electric water pump.
Check all electrical connections for security and correct polarity. Verify the temperature sensor is correctly installed and reading accurately. Ensure the activation temperature is set below the current engine temperature. For 24v systems, confirm 24v relays are installed.
Recalibrate the temperature setting on the unit. Ensure the sensor is placed in an accurate location to measure the true coolant temperature. Check for proper airflow around the sensor if using a radiator fin probe.
Verify the power and ground connections are secure and connected to a reliable power source. Check the vehicle's fuse for the circuit. Ensure the unit is receiving the correct voltage (12v or 24v).
Confirm that the wiring for the second fan is correctly connected to the designated output for the delayed fan. Ensure the switch is functioning correctly and not bypassing the delay circuit.
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