1. Introduction
This manual provides instructions for the operation and maintenance of your YAOHUIMI replacement remote control, model A420210928-(R51)-54, designed for MIDEA AC Air Conditioners. This remote is compatible with original remote models such as RG70A and RG70E/BGEF, and is an updated version that can work with your existing AC unit. Please verify your air conditioner model or original remote control model for compatibility before use. This is not a universal remote control.

Figure 1: Front view of the YAOHUIMI replacement remote control, showing the display and various buttons.
2. Setup
2.1 Battery Installation
- Open the battery compartment cover on the back of the remote control.
- Insert two AAA batteries, ensuring the positive (+) and negative (-) terminals match the markings inside the compartment.
- Close the battery compartment cover securely.
Note: This remote control typically does not require pairing. Once batteries are installed, it should function directly with compatible MIDEA AC units.
3. Operating Instructions
Familiarize yourself with the buttons and their functions:
- ON/OFF: Powers the air conditioner on or off.
- MODE: Cycles through operating modes (Auto, Cool, Dry, Heat, Fan).
- TEMP ▲ / ▼: Adjusts the set temperature up or down.
- FAN SPEED: Adjusts the fan speed (High, Med, Low, Auto).
- SWING: Activates or deactivates the automatic louver swing function.
- SLEEP: Activates the sleep mode for comfortable night operation.
- TIMER ON / TIMER OFF: Sets the timer for automatic power on or off.
- RESET LOCK: Resets settings or locks the remote to prevent accidental changes.
- LED DISPLAY: Toggles the display light on the air conditioner unit.
- TURBO: Activates maximum cooling or heating for rapid temperature change.
- AIR DIRECTION: Manually adjusts the air flow direction.
3.1 Temperature Display (Fahrenheit/Celsius)
This remote control supports displaying temperature in both Fahrenheit (°F) and Celsius (°C). The method to switch between these units may vary depending on the specific AC model. Typically, this can be done by pressing and holding the "MODE" button or a combination of "TEMP ▲" and "TEMP ▼" buttons simultaneously for a few seconds while the unit is off, or by a dedicated button if available on your specific remote model.

Figure 2: The remote control display is capable of showing temperatures in both Fahrenheit and Celsius.
3.2 Green Backlight
The remote features a green backlight for easy operation in low-light conditions. The backlight activates automatically when a button is pressed and remains on for a short period before fading out.

Figure 3: A close-up view of the remote control's display, highlighting the green backlight feature for improved visibility.
4. Maintenance
4.1 Battery Replacement
Replace batteries when the remote's response becomes sluggish or the display dims. Always replace both batteries simultaneously with new AAA batteries. Do not mix old and new batteries, or different types of batteries.
4.2 Cleaning
Wipe the remote control with a soft, dry cloth. Do not use liquid cleaners, abrasive cleaners, or chemical solvents, as these may damage the remote's surface or internal components.
4.3 Storage
If the remote control will not be used for an extended period, remove the batteries to prevent leakage and potential damage to the unit.
5. Troubleshooting
- Remote not responding:
- Check if batteries are correctly installed and have sufficient charge. Replace if necessary.
- Ensure there are no obstructions between the remote control and the air conditioner's receiver.
- Confirm you are within the effective operating range of the air conditioner.
- Air conditioner not responding to commands:
- Verify that the remote control model (RG70E2(2)/BGEF) is compatible with your specific MIDEA AC unit. This remote is not universal.
- Try resetting the air conditioner unit by turning off its power supply for a few minutes, then turning it back on.
- Display issues:
- If the display is dim or flickering, replace the batteries.
6. Specifications
| Model Number | A420210928-(R51)-54 |
| Compatible Remote Models | RG70A, RG70E/BGEF |
| Brand | YAOHUIMI |
| Power Source | 2 x AAA Batteries (not included) |
| Display Features | Fahrenheit and Celsius, Green Backlight |
| Control Type | Button Control |
7. Warranty Information
This product comes with a standard manufacturer's warranty. Please refer to the product packaging or contact the retailer for specific warranty terms and conditions.
8. Customer Support
For technical assistance, troubleshooting, or inquiries regarding your YAOHUIMI remote control, please contact your point of purchase or refer to the contact information provided with the product packaging.





