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 (select from available options): - 1x LCD Switch & Remote - 1x Motherboard - 1x Wiring Harness - 1x Remote Control - 3-Piece Set: 1x LCD Switch & Remote + 1x Motherboard - 5-Piece Set: 1x LCD Switch & Remote + 1x Motherboard + 1x Wiring Harness + 1x Temperature Sensor Specifications: - Color: As shown in product images - Remote Operating Distance: Up to 10 meters - Input Voltage: 12V / 24V - LCD Connector: 3-pin triangular plug - Remote Control: 4-button design - Battery: 1x 27A 12V battery included Compatibility: Fits 3kW, 5kW, and 8kW air-heated diesel parking heaters. Important Notes: 1. A transparent protective film covers the LCD screen — remove before use. 2. If your original motherboard and controller have all-black connectors and match ours visually, 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 3-Piece Set option. Selecting only “LCD Switch & Remote” does not include the motherboard. Selecting only “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 powered off. 2. Wait until “HFR-” appears on the display. 3. Press the UP button again to transmit the pairing code. 4. The heater will power on once the code is successfully accepted. If the code fails, the heater will not start. 5. The pairing mode exits automatically after a timeout period. Parameter Setting Instructions (press 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: Default = OFF (“1oF”). Press UP to enable (“1oN”), then press ENTER to set hours and minutes. Countdown timer supports up to 99h 59m. 3. Timer Power-Off: Default = OFF (“2oF”). Press UP to enable (“2oN”), then press ENTER to set hours and minutes. Countdown timer supports up to 99h 59m. 4. Administrator Password Entry: Use UP/DOWN buttons to select each digit (0–9). Press ENTER after each digit. After entering all 4 digits correctly, press ENTER to continue. Incorrect entry returns to first digit. To exit without saving, press SET repeatedly or wait 10 seconds for auto-exit. 5. Fuel Pump Oil Volume: Adjust minimum volume using UP/DOWN buttons. Press ENTER to confirm, then adjust maximum volume similarly. Press ENTER to proceed. 6. Fan Speed: Adjust minimum speed using UP/DOWN buttons. Press ENTER to confirm, then adjust maximum speed. Press ENTER to proceed. 7. Operating Voltage Selection: Must be set only when heater is powered off. Use UP/DOWN buttons to select: “U-12” for 12V systems, “U-24” for 24V systems. Verify compatibility of oil pump, motor, and glow plug before operation. 8. Speed Signal Selection: Display shows “5N-1” (default). Use UP/DOWN buttons to choose: “5N-1” for single magnet or opposite-polarity magnets; “5N-2” for same-polarity dual magnets. Incorrect selection may double displayed RPM. 9. Glow Plug Power Selection: Display shows “PF-5” (default). Use UP/DOWN buttons to select wattage: 1=35W, 2=40W, 3=45W, 4=80W, 5=85W, 6=90W. Default setting (5) is recommended unless otherwise specified.