Note: Since the logistics rejects all items with batteries, we can only remove the battery from the remote control. After receiving the packaging, please purchase the remote control battery yourself. We apologize for this inconvenience. The battery specification is 3V button cell CR2032/A27. Package Included: - 1x LCD Switch & Remote - 1x Mother Board - 1x Wire Harness - 1x Remote - 3PCS SET: 1x LCD Switch & Remote & 1x Mother Board - 5PCS SET: 1x LCD Switch & Remote & 1x Mother Board & 1x Wire Harness & 1x Temp Sensor Specification: - Color: As shown in picture - Remote distance: Within 10m - Voltage: 12V/24V - LCD Connector Pin: 3 Pins Triangle Plug - Remote Control: 4 Button - Battery: 1PC 27A 12V (INCLUDED) Fitment: For 3KW, 5KW, 8KW Air Diesel Parking Heater Important Note: 1. There is a transparent plastic protective film on the screen that can be removed before use. 2. If your original motherboard and controller look the same as ours, with all black plugs, then you can buy a motherboard or a controller separately to replace your broken one. If your original motherboard and controller differ from ours, you must purchase both the motherboard and controller together to ensure compatibility. Otherwise, it will not fit your heater. 3. The remote control is only compatible with our controller and motherboard. If you need a complete set including controller, remote, and motherboard, please choose the 3PCS SET. If only LCD Switch & Remote is selected, the motherboard is not included. If only Mother Board is selected, the controller and remote are not included. Please avoid placing incorrect orders. Remote Control Coding Instructions: 1. Press and hold the up button for more than 3 seconds while in the off state. 2. Enter the remote control code interface until "HFR-" is displayed. 3. Press the up button on the remote to launch the remote code. 4. The heater will turn on after the code disappears. It will not start if the coding fails. 5. The code will automatically exit if timed out. Parameter Setting Procedure (Press the setting key to enter setting mode): 1. Time Setting: Use up or down keys to adjust parameters. Set hour (24-hour format), minutes, and other values in sequence. Press enter key to confirm each parameter and proceed to the next. 2. Timer Power-On Setting: Default is off ("1oF"). Press up key to turn on ("1oN"), press enter to confirm, then set hour and minute. Timer operates in countdown mode, up to 99 hours and 59 minutes. 3. Timer Shut-Down Setting: Default is off ("2oF"). Press up key to turn on ("2oN"), press enter to confirm, then set hour and minute. Timer operates in countdown mode, up to 99 hours and 59 minutes. 4. Management Password Input: Use up and down keys to adjust. When correct digit appears, press confirm key to proceed to next digit. After entering 4-digit password correctly, press confirm key to continue. If input is incorrect, system returns to first digit entry. To exit without changes, press SET button until exit or wait 10 seconds for auto-exit. 5. Pump Oil Volume Setting: Use up or down key to adjust minimum oil volume. After setting, press confirm key to enter maximum oil volume setting. Adjust maximum volume, then press enter key to proceed. 6. Fan Speed Setting: Use up or down button to adjust minimum fan speed. After setting, press enter button to enter maximum speed setting. Adjust maximum speed, then press enter to proceed. 7. Working Voltage Setting: Can only be set when powered off. Use up or down key to switch between 12V ("U-12") and 24V ("U-24"). Confirm correct selection before operation. Always verify compatibility of oil pump, motor, and ignition plug before starting to prevent damage. 8. Speed Signal Selection: Display shows "5N-1". Use up or down key to set signal type. Select "5N-2" if impeller has two magnets with same polarity. Select "5N-1" if magnet polarities differ or only one magnet exists (default). Incorrect selection may double speed reading. 9. Ignition Plug Power Selection: Display shows "PF-5". Use up or down button to modify value (1=35W, 2=40W, 3=45W, 4=80W, 5=85W, 6=90W). Default is 5. Use default unless verified otherwise. 10. Management Password Modification: Initial display is "oF". Press confirm key to skip.