Note: Due to shipping restrictions, batteries cannot be included in the package. The remote control will be shipped without a battery. After receiving the item, please purchase a CR2032 or A27 3V button cell battery separately. We apologize for any 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 Specifications: - Color: As shown in picture - Remote Distance: Within 10m - Voltage: 12V/24V - LCD Connector Pin: 3-Pin Triangle Plug - Remote Control: 4 Button - Battery: 1PC 27A 12V (Not Included) Fitment: Compatible with 3KW, 5KW, and 8KW Air Diesel Parking Heaters Important Notes: 1. A transparent protective film is on the screen. Please remove it before use. 2. If your original motherboard and controller match ours (all black plugs), you may replace only the faulty part. If they differ, you must replace both the motherboard and controller together for compatibility. 3. The remote control is designed exclusively for our controller and motherboard. 4. When purchasing a complete set, choose the 3PCS SET. Selecting only the LCD Switch & Remote does not include the motherboard. Selecting only the Mother Board does not include the controller or remote. Please ensure correct selection to avoid ordering errors. Remote Control Coding Instructions: 1. Press and hold the up button for more than 3 seconds while the device is off. 2. Wait until the display shows HFR- to enter coding mode. 3. Press the up button to send the remote code. 4. The heater will turn on if the code is successful. If the code fails, the heater will not start. 5. The coding mode will exit automatically after timeout. Parameter Setting Procedure (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 (display 1oN), press enter, then set hours and minutes. Countdown mode supports up to 99 hours 59 minutes. 3. Timer Shutdown Setting: Default is off (display 2oF). Press up to turn on (display 2oN), press enter, then set hours and minutes. Countdown mode supports up to 99 hours 59 minutes. 4. Password Input: Use up/down keys to adjust digits. Press confirm when correct. After entering all 4 digits correctly, press confirm to proceed. 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. Press confirm to save and enter maximum volume setting. Adjust and press enter to continue. 6. Fan Speed Setting: Adjust minimum fan speed using up/down keys. Press enter to save and enter maximum speed setting. Adjust and press enter to continue. 7. Working Voltage Setting: Set only when powered off. Use up/down keys to select U-12 for 12V systems or U-24 for 24V systems. Confirm proper matching of oil pump, motor, and ignition plug before operation to prevent damage. 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 polarities differ or only one magnet is present (default). Incorrect selection may double speed reading. 9. Ignition Plug Power Selection: Display shows PF-5. Use up/down keys to select power level (1=35W, 2=40W, 3=45W, 4=80W, 5=85W, 6=90W). Default is 5. Use default unless otherwise specified.