Why does my Haier HSU-05LEA03 Air Conditioner smell?
- SsmcdowellSep 12, 2025The smells generated by your Haier Air Conditioner are due to the system circulating odors from the room's air, such as smells from furniture, paint, or cigarettes. 

Why does my Haier HSU-05LEA03 Air Conditioner smell?
The smells generated by your Haier Air Conditioner are due to the system circulating odors from the room's air, such as smells from furniture, paint, or cigarettes.
Why does my Haier HSU-05LEA03 blow out mist?
During COOL or DRY operation, your Haier Air Conditioner may blow out mist. This happens because of the rapid cooling of the indoor air.
| Brand | Haier | 
|---|---|
| Model | HSU-05LEA03 | 
| Category | Air Conditioner | 
| Language | English | 
Instructions for safely and environmentally disposing of old air conditioners.
Guidance on recycling and disposing of new air conditioner packaging materials.
Important observations relating to assembly, operation, and maintenance.
Details applicable ambient temperature ranges for cooling and heating operations.
General instructions and warnings categorized by risk level: WARNING and CAUTION.
Guidelines and warnings related to the proper installation of the air conditioner.
Identifies and illustrates the components of the indoor unit of the air conditioner.
Shows diagrams and labels for the outdoor unit components, along with model numbers.
Details the buttons and display of the remote controller, including operation mode and clock setting.
Provides step-by-step instructions for setting the clock on the remote controller.
Tips on remote controller self-check after battery replacement and notes for cooling-only units.
Guidelines on using the remote controller, including signal transmission distance and handling.
Instructions for removing and installing batteries in the remote controller.
Explains how the unit resumes operation after a power outage and precautions.
How to start, select mode, set fan speed, and stop the unit in Auto operation mode.
Notes on remote controller memory, cooling-only units, and display information.
Steps for starting, selecting mode, setting temperature, adjusting fan speed, and stopping in Cool mode.
Notes on remote controller memory and cooling-only units regarding Cool operation.
Instructions for starting, mode selection, temperature setting, fan speed, and stopping in Dry mode.
Notes on remote controller memory and cooling-only units regarding Dry operation.
How to start, select mode, set temperature, adjust fan speed, and stop in Heat mode.
Notes on remote controller memory and cooling-only units regarding Heat operation.
Steps for starting, selecting mode, adjusting fan speed, and stopping in Fan mode.
Notes on FAN mode limitations, such as no cooling/heating, disabled temp. setting, and no sleep function.
Covers horizontal flap status, up/down air flow control via remote, and manual left/right adjustment.
Warnings regarding manual flap adjustment, condensate water, and airflow.
Suggests adjusting airflow horizontally for better circulation in COOL mode.
Explains how to use the SLEEP function for a comfortable sleep experience.
Details sleep function behavior in COOL/DRY, HEAT, AUTO, and FAN modes, including timer interactions.
Explains how to enable/disable power failure resume and the 3-minute compressor delay.
How to activate, use, and cancel the HEALTH anion function.
Explains the benefits of the anion generator for air purification and health.
Instructions for setting timer ON, timer OFF, and timer ON-OFF functions.
How to disable timer functions by pressing the TIMER button.
Notes on resetting time after battery replacement/power failure and remote memory function for timers.
How to confirm the ON timer setting and what the display indicates.
Procedures for setting the OFF timer, similar to setting the ON timer.
How to confirm the OFF timer setting and what the display indicates.
How to disable timer functions by pressing the TIMER button.
How to use the unit via the emergency switch when the remote is lost or defective.
Instructions for performing a test operation, especially in low temperatures, and its duration.
How to terminate emergency or test operation using the switch or remote.
General advice for efficient and effective use of the air conditioner.
Recommendation to set appropriate room temperatures for comfort.
Warning against obstructing airflow to maintain cooling efficiency.
Advice to keep doors/windows closed during operation to maintain performance.
Suggests utilizing the timer function for efficient operation.
Instruction to disconnect power when the unit is not in use for extended periods.
Recommends effective use of louvers for air direction control.
Cleaning instructions for the remote controller.
Cleaning instructions for the indoor unit's body using soft cloth and mild detergent.
Lists substances like gasoline, thinner, hot water that should not be used for cleaning.
Step-by-step guide for cleaning the air filter, including removal, washing, and reattachment.
Detailed instructions for opening the grille, detaching, installing, and closing after air purifying filter replacement.
Notes on the correct orientation of photocatalyst and bacteria-killing filters.
Information on the usage and maintenance of photocatalyst and bacteria-killing filters.
Common phenomena like no restart, noise, smells, and their causes or checks.
Troubleshooting for poor cooling, including checks for power, filter, obstacles, settings, and room conditions.