Note: Due to shipping restrictions, the battery is removed from the remote control before shipment. Please purchase a CR2032 or A27 3V button cell battery separately upon receipt. Package Included: - Option 1: 1x LCD Switch & Remote - Option 2: 1x Motherboard - Option 3: 1x Wiring Harness - Option 4: 1x Remote - Option 5: 3PCS SET — 1x LCD Switch & Remote + 1x Motherboard - Option 6: 5PCS SET — 1x LCD Switch & Remote + 1x Motherboard + 1x Wiring Harness + 1x Temperature Sensor Specifications: - Color: As shown in image - Remote Control Range: 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 diesel parking heaters Important Notes: 1. A transparent protective film covers the LCD screen. Remove it 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 to ensure compatibility. 3. The remote control is compatible only with our matching controller and motherboard. 4. To purchase a complete set (LCD switch, remote, and motherboard), select the 3PCS SET. Selecting only the LCD Switch & Remote does not include the motherboard. Selecting only the Motherboard does not include the controller or remote. Please verify your selection carefully before ordering. Remote Control Pairing Instructions: 1. Press and hold the UP button for more than 3 seconds while the heater is off. 2. The display will show “HFR-”, indicating entry into pairing mode. 3. Press the UP button again to transmit the pairing code. 4. The heater will power on once the code is accepted. If pairing fails, the heater will not start. 5. Pairing mode exits automatically after timeout. Parameter Setting Procedure (Press the SET button to enter settings): 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: Default is OFF (display shows “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: Default is OFF (display shows “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. Administrator Password Entry: Use UP/DOWN buttons to select digits. Press ENTER after each digit. After entering the correct 4-digit password, press ENTER to continue. Incorrect input returns to first digit. To exit without saving, press SET repeatedly or wait 10 seconds. 5. Fuel Pump Volume Setting: Use UP/DOWN buttons to set minimum fuel volume. Press ENTER to confirm, then adjust maximum volume. Press ENTER to proceed. 6. Fan Speed Setting: Use UP/DOWN buttons to set minimum fan speed. Press ENTER to confirm, then adjust maximum speed. Press ENTER to proceed. 7. Operating Voltage Selection: Must be configured only when heater 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 startup. 8. Speed Signal Selection: Default is “5N-1”. Select “5N-2” if impeller magnets have identical polarity; select “5N-1” if polarity differs or only one magnet is present. Incorrect selection may double displayed RPM. 9. Glow Plug Power Selection: Display shows “PF-5” by default. Adjust value using UP/DOWN buttons (1=35W, 2=40W, 3=45W, 4=80W, 5=85W, 6=90W). Default setting (5) is recommended unless verified otherwise. 10. Administrator Password Change: Initial display shows “oF”. Press ENTER to skip or proceed with modification.