Note: Due to logistics restrictions, we can only remove the battery from the remote control. After receiving the package, please purchase the remote control battery separately. We apologize for the inconvenience! The battery specification is a 3V button cell like 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 the picture Remote distance: Up to 10m Voltage: 12V/24V LCD Connector pin: 3 Pins Triangle Plug Remote Control: 4 Buttons Battery: 1PC 27A 12V, INCLUDED. Fitment: For specific brand 3KW, 5KW, 8KW Air Diesel Parking Heater Important Note: 1. A transparent plastic protective film is on the screen and can be removed before use. 2. If your original motherboard and controller look identical to ours, with all black plugs, you can purchase either a motherboard or a controller to replace the damaged one. If your original ones differ, both must be replaced together as they will not be compatible. 3. The remote key is only compatible with our controller and motherboard. If you wish to purchase a complete set of controller, remote key, and motherboard, please select the 3PC SET. Selecting only the LCD Switch & Remote does not include the motherboard; selecting only the Mother Board excludes the controller and remote key. Please ensure you order correctly! Remote Control Coding Instructions: 1. Press the up button and hold for more than 3 seconds while off. 2. Access the remote control code interface until displaying HFR-. 3. Press the up button on the remote to initiate the remote code. 4. The heater will activate once the remote code disappears; it will not turn on if the code fails. 5. The code will automatically exit after a timeout. Parameter Setting Process: 1. Time setting: Press the up or down key to adjust parameters, set hours (24-hour clock), minutes, etc. Press the enter key to confirm parameters and move to the next item. 2. Timing power-on setting: default off, display 1oF; press the up key to change to 1oN, press enter to set hour and minute in sequence. Timing works in countdown mode up to 99 hours and 59 minutes. 3. Timed shutdown setting: default off, display 2oF; press the up key to change to 2oN, press enter to set hour and minute in sequence. Similar countdown mode applies. 4. Pump oil volume setting: Press the up or down key to modify the minimum pump oil volume, then confirm to set the maximum volume, and proceed similarly for maximum and minimum settings. 5. Fan speed setting: Adjust minimum fan speed with the up or down button, then confirm for maximum speed and proceed accordingly. 6. Working voltage setting: Only select while in shutdown state. Press up or down to set working voltage for either 12V (U-12) or 24V (U-24). Ensure compatibility of oil pump, motor, and ignition plug before starting. 7. Speed signal selection: Display 5N-1; press the up or down key to set the speed signal based on the polarity of magnets. 8. Ignition plug power selection: Display PF-5; adjust as needed (1=35W, 2=40W, 3=45W, 4=80W, 5=85W, 6=90W) with the default being 5. Recommended to keep this setting or modify after verification. 9. Management password modification: Initially display the OF state; press the confirm key to skip.