1. Introduction
This user manual provides detailed instructions for the ALLIMITY YL-HD01, YL-HD04, YL-HD06 series compatible remote control for various air conditioning units. This remote control is designed to cover all functions of your original remote without requiring any programming. Simply insert batteries, and it is ready for use.
It is compatible with a wide range of models, including but not limited to: AS50TDBHRA, AS68TEBHRA, AS25TACHRA, AS35TACHRA, AS20TADHRA-2, AS25TADHRA-2, AS35TADHRA-2, AS25THMHRA-C, AS35TAMHRA-C, AS50TDMHRA-C, AS68TEMHRA-C, AS25TEDHRA(M1), AS09GB2HRA, AS12GB2HRA, AS18GD2HRA, AS24GF2HRA, AS09GN3ERA, AS12GN3ERA, AS18GN3ERA, AS25TAEHRA-THC, AS35TAEHRA-THC, AS50TDDHRA-THC, AS68TEDHRA-THC, HSU-09HEG03/R2(DB), HSU-12HEG03/R2(DB), HSU-18HEG03/R2(DB), HSU-24HEG03/R2(DB), HSU-09HEK03/R2(DB), HSU-12HEK03/R2(DB), HSU-18HEK03/R2(DB), HSU-24HEK03/R2(DB), AS35TB1HRA, AS26TB1HRA, AS26TB4HRA, 0010401511E, 0010401715B, ASO9TA2HRA, AS12TA2HRA, AS18TD2HRA, AS24TD2HRA, AS25TAAHRA, AS35TAAHRA, AS50TDAHRA, AS68TEAHRA, AS25TABHRA, AS35TABHRA.
2. Setup
2.1 Battery Installation
The remote control requires two AAA alkaline batteries (not included). Follow these steps to install them:
- Locate the battery compartment cover on the back of the remote control.
- Slide the cover downwards to open the compartment.
- Insert two AAA alkaline batteries, ensuring the positive (+) and negative (-) terminals align correctly with the markings inside the compartment.
- Slide the battery compartment cover back into place until it clicks securely.

Figure 2.1: Battery compartment with batteries inserted. Ensure correct polarity.

Figure 2.2: Rear view of the remote control with the battery cover closed.
No programming is required. The remote control is ready for use immediately after battery installation.
3. Operating Instructions
Point the remote control directly at the air conditioning unit's receiver. Ensure there are no obstructions between the remote and the unit.

Figure 3.1: Front view of the remote control with button layout.
3.1 Button Functions
- Power Button (Pink, top right): Turns the air conditioning unit ON or OFF.
- QUIET (Green, top left): Activates or deactivates the quiet operation mode.
- COOL (Blue): Sets the air conditioning unit to cooling mode.
- HEAT (Orange): Sets the air conditioning unit to heating mode.
- DRY (Grey): Sets the air conditioning unit to dehumidification mode.
- TEMP+ / TEMP-: Adjusts the temperature setting upwards or downwards.
- AUTO: Sets the air conditioning unit to automatic mode, where it selects the appropriate operation mode based on room temperature.
- FAN: Adjusts the fan speed. Press repeatedly to cycle through available fan speeds (e.g., Low, Medium, High, Auto).
- SWING: Controls the vertical or horizontal swing of the air deflector.
- TIMER: Sets the timer for automatic ON/OFF operations. Refer to your air conditioning unit's manual for specific timer programming details.
- HEALTH: Activates or deactivates health-related functions (e.g., air purification, ionizer), if supported by your AC unit.
- EXTRA FUNCTION: Accesses additional functions. Specific functions may vary by AC model.
- Confirm / Cancel: Used to confirm settings or cancel operations, often in conjunction with timer or extra functions.
- LOCK: Locks the remote control buttons to prevent accidental changes. Press again to unlock.
- LIGHT: Turns the display backlight ON or OFF (if available).
- RESET: Resets the remote control to its factory default settings. Use a pointed object (like a paperclip) to press this recessed button.
4. Maintenance
4.1 Battery Replacement
Replace batteries when the remote control's display becomes dim or the unit does not respond to commands. Always replace both batteries at the same time with new AAA alkaline batteries. Do not mix old and new batteries, or different types of batteries.
4.2 Cleaning
To clean the remote control, wipe it gently 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 remote.
5. Troubleshooting
- Remote not responding:
- Check if the batteries are inserted correctly with the correct polarity.
- Replace old batteries with new AAA alkaline batteries.
- Ensure there are no obstructions between the remote control and the air conditioning unit's receiver.
- Make sure you are within the effective operating range (up to 10 meters).
- Display is dim or blank:
- Batteries are low. Replace them with new ones.
- Remote functions are erratic:
- Try resetting the remote control by pressing the recessed RESET button with a pointed object.
- Ensure no buttons are stuck or jammed.
6. Specifications
| Feature | Detail |
|---|---|
| Brand | ALLIMITY |
| Model Number | QYSY-MBE790-QYSY |
| Product Dimensions | 4 x 12 x 0.3 cm |
| Product Weight | 60 g |
| Battery Type | AAA Alkaline (not included) |
| Connectivity Technology | Infrared |
| Maximum Range | 10 Meters |
| Special Feature | No programming required |
| Compatible Devices | AS26TB1HRA, AS35TB1HRA, AS26TB4HRA, and many other models listed in Section 1. |
7. Warranty and Support
Specific warranty information for this product is not provided in the available data. For any issues, questions, or support regarding your ALLIMITY remote control, please contact the seller or manufacturer directly through your purchase platform.
Ensure you retain your proof of purchase for any warranty claims or support inquiries.