Note: Due to logistics restrictions on items containing batteries, the battery has been removed from the remote control. After receiving the package, please purchase a CR2032/A27 3V button cell battery separately. We apologize for the inconvenience. 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: Compatible with 3KW, 5KW, and 8KW Air Diesel Parking Heaters. Important Notes: 1. A transparent protective film is applied on the screen. Please remove it before use. 2. If your original motherboard and controller match ours in appearance and have all black plugs, you may replace only the faulty component. If they differ, you must replace both the motherboard and controller together to ensure compatibility. 3. The remote control is designed exclusively for our controller and motherboard. For a complete replacement set, select the 3PCS SET. Note: Choosing only the LCD Switch & Remote does not include the motherboard. Selecting only the Mother Board does not include the controller or remote. Please verify your selection carefully to avoid incorrect orders. Remote Control Coding Instructions: 1. Press and hold the up button for more than 3 seconds while the unit is off. 2. Wait until the display shows HFR- to enter coding mode. 3. Press the up button to activate the remote code. 4. The heater will turn on if the code is successful; otherwise, it will not start. 5. The coding mode will exit automatically after timeout. Parameter Setting Process (Press the setting key to enter): 1. Time Setting: Use up/down keys to adjust hour (24-hour format), minutes, and other parameters. Press enter to confirm and proceed. 2. Timer Power-On Setting: Default is off (display 1oF). Press up to turn on (1oN), press enter, then set hour and minute. Countdown mode supports up to 99 hours 59 minutes. 3. Timer Shut-Down Setting: Default is off (2oF). Press up to turn on (2oN), press enter, then set hour and minute. Countdown mode supports up to 99 hours 59 minutes. 4. Password Input: Use up/down keys to adjust digits. When correct digit appears, press confirm to proceed. After entering 4-digit password correctly, press confirm to continue. Incorrect input returns to initial state. To exit without changes, press SET or wait 10 seconds. 5. Pump Oil Volume Setting: Adjust minimum oil volume using up/down keys, confirm, then set maximum volume. Press enter to proceed. 6. Fan Speed Setting: Adjust minimum fan speed, confirm, then set maximum speed. Press enter to move to next setting. 7. Working Voltage Setting: Set only when heater is off. Use up/down keys to select 12V (U-12) or 24V (U-24). Ensure oil pump, motor, and ignition plug are compatible before operation. 8. Speed Signal Selection: Display shows 5N-1. Use up/down keys to set: choose 5N-2 if impeller has two magnets with same polarity; choose 5N-1 if magnets have opposite polarity or only one magnet (default). Incorrect setting may double speed reading. 9. Ignition Plug Power Selection: Display shows PF-5. Adjust value: 1=35W, 2=40W, 3=45W, 4=80W, 5=85W, 6=90W. Default is 5. Recommended to keep default unless verified otherwise. 10. Management Password Change: Default displays oF. Press confirm key to start modification.