1. Introduction
Thank you for choosing the Beyution Universal RAR-3N4 Replacement Air Conditioner Remote Control. This remote is designed to be a direct replacement for various Hitachi Air Conditioner models, offering immediate functionality without the need for complex programming. Its infrared technology ensures reliable communication with your air conditioning unit.

Figure 1.1: Beyution Universal RAR-3N4 Remote Control (Angled View)
2. Product Features
- Model: RAR-3N4
- Connectivity: Infrared (IR)
- Material: Durable ABS Plastic
- Operating Distance: Up to 10 meters (33 feet)
- Setup: No programming or setup required; ready to use with batteries.
- Design: Lightweight and ergonomic for comfortable grip.
- Response: Stable performance with fast button response.
3. Setup
The Beyution RAR-3N4 remote control is designed for immediate use. Simply install the batteries, and it will function with compatible air conditioner models.
3.1 Battery Installation
- Locate the battery compartment on the back of the remote control.
- Slide the battery cover downwards or press the latch to open it.
- Insert two (2) AAA batteries, ensuring the positive (+) and negative (-) terminals align correctly with the markings inside the compartment.
- Close the battery cover securely.
Note: Batteries are not included with the remote control. Please use new alkaline batteries for optimal performance.

Figure 3.1: Battery Compartment (Open)
4. Operating Instructions
Once batteries are installed, the remote is ready to operate your compatible Hitachi Air Conditioner. Point the remote control directly at the air conditioner's receiver when pressing buttons.

Figure 4.1: Beyution Universal RAR-3N4 Remote Control (Front View)
4.1 Basic Functions
- Power Button: Turns the air conditioner ON or OFF.
- Mode Button: Cycles through operating modes (e.g., Cool, Dry, Fan, Heat, Auto).
- Temperature Adjustment Buttons (℃): Increases or decreases the set temperature.
- Fan Speed Button: Adjusts the fan speed (e.g., Low, Medium, High, Auto).
- Timer Buttons: Sets the ON/OFF timer for the unit.
- Swing/Louver Button: Controls the direction of the air flow.
- Sleep Mode Button: Activates or deactivates sleep mode.
- Reset Button: Resets the remote to default settings (usually a small recessed button requiring a pointed object to press).
Note: Specific button icons and functions may vary slightly based on the original remote's design and your air conditioner model. Refer to your air conditioner's manual for detailed function descriptions.
5. Maintenance
Proper care will extend the life of your remote control.
- Cleaning: Wipe the remote control with a soft, dry cloth. Do not use liquid cleaners or abrasive materials.
- Battery Replacement: Replace batteries when the remote's range decreases or it becomes unresponsive. Always replace both batteries at the same time.
- Storage: If the remote will not be used for an extended period, remove the batteries to prevent leakage and damage. Store in a cool, dry place.
- Avoid Exposure: Do not expose the remote to direct sunlight, high temperatures, or high humidity. Avoid dropping the remote.
6. Troubleshooting
If you experience issues with your remote control, please refer to the following common solutions:
- Remote Not Responding:
- Check if the batteries are inserted correctly with the correct polarity (+/-).
- Replace old batteries with new ones.
- Ensure there are no obstructions between the remote control and the air conditioner's receiver.
- Make sure you are within the effective operating range (up to 10 meters).
- Air Conditioner Not Responding:
- Verify that your air conditioner model is listed as compatible (see Section 7).
- Ensure the air conditioner is powered on and not in standby mode.
- Buttons Not Working:
- Clean the remote control surface and buttons to remove any dirt or debris.
- If only specific buttons are unresponsive, the remote may be damaged.
If the remote control you receive is damaged or does not work after following these steps, please contact customer service for assistance.
7. Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 6.3 x 1.57 x 0.39 inches |
| Item Weight | 2.47 ounces |
| Item Model Number | RAR-3N4 |
| Batteries Required | 2 AAA batteries (not included) |
| Connectivity Technology | Infrared |
| Special Feature | No Programming Required |
8. Compatible Models
This remote control is compatible with, but not limited to, the following Hitachi Air Conditioner models:
- RAR-2SP1
- RAR-2P1
- PAS-S18CAK
- PAS-X18CBK
- RAS-13C9G
- RAS-S10CC
- RAS-51
- RAR-3N2
- RAR2P1
- RAR-3U1
- RAS-5111G
- RAS-10C9G
If your device model is not listed, please contact customer service to verify compatibility before purchasing.
9. Warranty and Support
9.1 Warranty Period
This Beyution remote control comes with a 6-month warranty period from the date of purchase.
9.2 Customer Support
For any questions, concerns, or issues regarding your remote control, including compatibility checks or if you receive a damaged/non-working unit, please contact our customer service team. We are committed to providing a satisfactory solution within 24 hours.
Please refer to your purchase platform for specific contact methods (e.g., seller contact option on Amazon).