Trouble shooting

Before asking for service, check the following first.

	Phenomenon	Cause or check points
	The system does not restart	When unit is stopped, it won't restart
	immediately.	When unit is stopped, it won't restart
	immediately.	immediately until 3 minutes have elapsed
		to protect the system.
		When the electric plug is pulled out and
		reinserted, the protection circuit will work
		for 3 minutes to protect the air conditioner.
	Noise is heard:	During unit operation or at stop, a swishing
	Noise is heard:	or gurgling noise may be heard. At first 2-3
		minutes after unit start, this noise is more
		noticeable. (This noise is generated by
Normal		refrigerant flowing in the system.)
Normal		During unit operation, a cracking noise may
Performance		be heard. This noise is generated by the
inspection		casing expanding or shrinking because of
		temperature changes.
		Should there be a big noise from air flow in
		unit operation, air filter may be too dirty.
	Smells are generated.	This is because the system circulates smells
	Smells are generated.	from the interior air such as the smell of
		furniture, cigarettes.
	Mist or steam are blown out. During COOL or DRY operation, indoor unit
		may blow out mist. This is due to the sudden
		cooling of indoor air.
Multiple	Does not work at all.	Is power plug inserted?
Multiple		Is there a power failure?
check		Is there a power failure?
check		Is fuse blown out?
		Is fuse blown out?
	Poor cooling	Is the air filter dirty? Normally it should be
	Poor cooling	cleaned every 15 days.
		cleaned every 15 days.
		Are there any obstacles before inlet and outlet?
		Is temperature set correctly?
		Are there some doors or windows left open?
		Is there any direct sunlight through the
		window during the cooling operation?(Use
		curtain)
		Are there too much heat sources or too many
		people in the room during cooling operation?

HSU-18RC03/R2(DB), HSU-22RC03/R2(DB), HSU-12RC03/R2(DB), HSU-09RC03/R2(DB) specifications

Haier is a renowned brand in the home appliance industry, and its range of air conditioners reflects its commitment to quality, innovation, and efficiency. Among its notable offerings are the HSU-12RC03/R2(DB), HSU-18RC03/R2(DB), HSU-22RC03/R2(DB), and HSU-09RC03/R2(DB) models. These air conditioners are designed to provide optimal cooling and comfort while integrating advanced technologies that ensure energy efficiency and user convenience.

One of the standout features of these Haier air conditioners is their inverter technology. Inverter air conditioners adjust their compressor speed based on the temperature of the room, leading to substantial energy savings while maintaining a consistent level of comfort. This technology not only reduces electricity bills but also minimizes wear and tear on the compressor, enhancing the unit's longevity.

Each model offers impressive cooling capacity, making them suitable for different room sizes and cooling needs. The HSU-09RC03/R2(DB) model, with a capacity of 0.75 tons, is ideal for smaller spaces, while the HSU-18RC03/R2(DB) and HSU-22RC03/R2(DB) models, with capacities of 1.5 and 2 tons respectively, are perfect for larger areas. The HSU-12RC03/R2(DB) offers a balanced option for medium-sized rooms, making these units versatile and adaptable to various settings.

Another feature that enhances user experience is the advanced air filtration system. These air conditioners come equipped with a multi-stage filter that effectively removes dust, allergens, and other harmful particles from the air. This feature is particularly beneficial for households with allergy sufferers or individuals sensitive to pollutants.

The design of these air conditioning units prioritizes user-friendliness and aesthetics. They are sleek and modern, allowing them to blend seamlessly into any interior decor. The remote control feature adds an additional layer of convenience, enabling users to adjust settings from the comfort of their couch or bed.

Moreover, these models are engineered with noise reduction technologies. They operate quietly, ensuring minimal disturbance, making them suitable for bedrooms, study rooms, and other quiet environments. With their combination of cutting-edge technology, elegant design, and practical features, the Haier HSU series air conditioners provide an excellent cooling solution, ensuring comfort and efficiency for any home.