Note: Due to shipping restrictions, the remote control is shipped without a battery. Please purchase a CR2032 or A27 3V button cell battery separately upon receipt. Package Includes: - 1x LCD Switch & Remote - 1x Motherboard - 1x Wiring Harness - 1x Remote - 3PCS SET: 1x LCD Switch & Remote + 1x Motherboard - 5PCS SET: 1x LCD Switch & Remote + 1x Motherboard + 1x Wiring Harness + 1x Temperature Sensor Specifications: - Color: As shown in image - Remote Operating Distance: Up to 10 meters - Operating Voltage: 12V / 24V - LCD Connector: 3-pin triangular plug - Remote Control: 4-button design - Battery: 1x 27A 12V battery included Compatibility: Designed for 3kW, 5kW, and 8kW air-heated diesel parking heaters. Important Notes: 1. A transparent protective film covers the LCD screen and must be removed before use. 2. If your original motherboard and controller have all-black connectors matching ours, you may replace either component individually. If they differ, both motherboard and controller must be purchased together for compatibility. 3. The remote control is only compatible with our matching controller and motherboard. 4. To purchase a complete set (LCD switch, remote, and motherboard), select the 3PCS SET option. Selecting only “LCD Switch & Remote” does not include the motherboard. Selecting only “Motherboard” does not include the controller or remote. Remote Control Pairing Instructions: 1. Press and hold the UP button for more than 3 seconds while the device is powered off. 2. The display will show “HFR-”, indicating entry into pairing mode. 3. Press the UP button again to initiate code transmission. 4. The heater will power on once the code is successfully received. If pairing fails, the heater will not start. 5. The pairing interface exits automatically after a timeout period. Parameter Setting Procedure (press the SET button to enter settings mode): 1. Time Setting: Use UP/DOWN buttons to adjust hour (24-hour format), minute, and other parameters. Press ENTER to confirm and proceed. 2. Timer Power-On Setting: Default is OFF (“1oF”). Press UP to enable (“1oN”), then press ENTER to set hour and minute. Countdown timer supports up to 99 hours and 59 minutes. 3. Timer Power-Off Setting: Default is OFF (“2oF”). Press UP to enable (“2oN”), then press ENTER to set hour and minute. Countdown timer supports up to 99 hours and 59 minutes. 4. Management Password Input: Use UP/DOWN buttons to adjust each digit. Press CONFIRM to move to the next digit. After entering the correct 4-digit password, press CONFIRM to proceed. Incorrect input returns to the first digit. To exit without saving, press SET repeatedly or wait 10 seconds for automatic exit. 5. Fuel Pump Volume Setting: Use UP/DOWN buttons to set minimum fuel volume. Press CONFIRM to proceed to maximum volume setting. Adjust with UP/DOWN and press ENTER to confirm. 6. Fan Speed Setting: Use UP/DOWN buttons to set minimum fan speed. Press ENTER to proceed to maximum speed setting. Adjust with UP/DOWN and press ENTER to confirm. 7. Operating Voltage Selection: Must be configured only when the unit is powered off. Use UP/DOWN buttons to select voltage: “U-12” for 12V systems, “U-24” for 24V systems. Verify compatibility of fuel pump, motor, and glow plug before operation. 8. Speed Signal Selection: Display shows “5N-1” by default. Use UP/DOWN to select “5N-1” (for single magnet or opposite-polarity magnets) or “5N-2” (for same-polarity dual magnets). Incorrect selection may double displayed RPM. 9. Glow Plug Power Selection: Display shows “PF-5” by default. Use UP/DOWN to select wattage: 1=35W, 2=40W, 3=45W, 4=80W, 5=85W, 6=90W. Default value (5) is recommended unless verified otherwise. 10. Management Password Change: Initial display shows “oF”. Press CONFIRM to skip or proceed with modification.