Hisense AST-12UW4SVEDJ10
Hisense Comfort Inverter Air Conditioner User Manual
Model: AST-12UW4SVEDJ10
Brand: Hisense
1. Introduction
This user manual provides detailed instructions for the installation, operation, maintenance, and troubleshooting of your Hisense Comfort Inverter Air Conditioner, model AST-12UW4SVEDJ10. Please read this manual thoroughly before using the appliance to ensure safe and efficient operation.

Image 1: Hisense Comfort Inverter Air Conditioner, showing both the indoor wall-mounted unit and the outdoor compressor unit.
2. Safety Information
Always adhere to the following safety precautions to prevent injury or damage to the unit.
- Ensure the power supply matches the unit's requirements (240 Volts).
- Do not attempt to repair or modify the unit yourself. Contact qualified service personnel.
- Keep the area around the outdoor unit clear of obstructions.
- Do not insert fingers or objects into the air inlet/outlet.
- Unplug the unit before cleaning or performing maintenance.
3. Product Components
Your Hisense air conditioner system consists of two main units and accessories:
- Indoor Unit: Wall-mounted unit that cools/heats the room.
- Outdoor Unit: Compressor unit installed outside the building.
- Remote Control: For operating the unit wirelessly.
- Air Filters: Located within the indoor unit for air purification.
4. Setup and Installation
Installation of this split-system air conditioner requires professional assistance. The following steps are for informational purposes only and should be performed by a certified technician.
- Indoor Unit Placement: Select a location on a sturdy wall, away from direct sunlight and heat sources, ensuring proper air circulation.
- Outdoor Unit Placement: Choose a well-ventilated outdoor area, away from obstacles, with sufficient space for maintenance.
- Refrigerant Piping: Connect the indoor and outdoor units with appropriate refrigerant lines.
- Drainage Pipe Installation: Ensure proper drainage for condensate water from the indoor unit.
- Electrical Wiring: Connect the power supply according to local electrical codes. The unit operates on 240 Volts.
- Vacuuming and Test Run: Evacuate air from the refrigerant lines and perform a test run to check for proper operation and leaks.
5. Operating Instructions
5.1 Basic Operation with Remote Control
Point the remote control towards the indoor unit when operating.
- Power ON/OFF: Press the ON/OFF button to start or stop the unit.
- Mode Selection: Press the MODE button to cycle through modes: Auto, Cool, Dry (Dehumidifier), Fan, Heat.
- Temperature Adjustment: Use the TEMP ▲ / ▼ buttons to set the desired temperature.
- Fan Speed: Press the FAN button to adjust fan speed (Auto, Low, Medium, High).
- Swing Function: Press the SWING button to activate or deactivate the louver swing.
5.2 Special Features
- Dehumidifier Function: In Dry mode, the unit will reduce humidity in the room.
- Sleep Mode: Optimizes temperature and fan speed for comfortable sleep.
- Timer Function: Set the unit to turn on or off automatically at a specified time.
6. Maintenance
Regular maintenance ensures optimal performance and longevity of your air conditioner.
6.1 Cleaning the Air Filter
- Turn off the unit and disconnect power.
- Open the front panel of the indoor unit.
- Remove the air filters.
- Clean the filters with a vacuum cleaner or wash them with lukewarm water.
- Dry the filters completely before reinserting them.
- Close the front panel.
Frequency: Clean filters every two weeks or more often if the unit is used frequently or in dusty environments.
6.2 Outdoor Unit Cleaning
Periodically clean the outdoor unit's coils and fan blades to ensure efficient heat exchange. This should ideally be done by a professional technician.
6.3 Seasonal Maintenance
Before and after peak usage seasons, consider having a professional inspect the refrigerant levels, electrical connections, and overall system performance.
7. Troubleshooting
Refer to the table below for common issues and their solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not start | No power; Remote control batteries low; Timer function active. | Check power supply; Replace batteries; Cancel timer setting. |
| Insufficient cooling/heating | Dirty air filter; Obstruction at air inlet/outlet; Room too large; Doors/windows open. | Clean air filter; Remove obstructions; Ensure room size is appropriate; Close doors/windows. |
| Unusual noise | Loose parts; Foreign object in fan; Unit not level. | Contact service technician. |
| Water leakage | Clogged drain pipe; Improper installation. | Clear drain pipe; Contact service technician for re-installation check. |
If the problem persists after attempting these solutions, please contact Hisense customer support.
8. Specifications
| Model Name | AST-12UW4SVEDJ10 (also known as AST-12UW4 SVEDJ10) |
| Brand | Hisense |
| Cooling Capacity | 12000 BTU (1 Tonne) |
| Special Feature | Dehumidifier |
| Voltage | 240 Volts |
| Power Source | Wired |
| Item Weight | 8.5 kg |
| BEE Star Rating | 5 Stars |
9. Warranty and Support
Your Hisense AST-12UW4SVEDJ10 Air Conditioner comes with a Limited Warranty. For specific terms and conditions of the warranty, please refer to the warranty card included with your product or visit the official Hisense website.
For technical support, service requests, or inquiries regarding your product, please contact Hisense customer service through their official channels. You can typically find contact information on the Hisense website or in the product packaging.
Note: For purchases made through Amazon, specific return and warranty claim procedures may also be handled via Amazon's customer service, as detailed on their Warranty and Returns Help Page.
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