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
		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
		from the interior air such as the smell of
		furniture, cigarettes.
	Mist or steam are blown out.	During COOL or DRY operation, indoor unit
		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-09C03, HSU-09H03, HSU-12C03, HSU-12H03, HSU-18C03, HSU-18H03, HSU-22C03, HSU-22H03 specifications

Haier, a leading global brand in home appliances and consumer electronics, offers a range of air conditioning units that are designed to cater to diverse cooling needs. Among their popular models are the HSU-09C03, HSU-09H03, HSU-12C03, HSU-12H03, HSU-18C03, HSU-18H03, HSU-22C03, and HSU-22H03. Each of these models boasts unique features, advanced technologies, and exceptional performance characteristics, making them ideal choices for both residential and commercial spaces.

The Haier HSU-09C03 and HSU-09H03 models are well-suited for smaller rooms while providing efficient cooling and heating capabilities. Both are equipped with energy-saving features, ensuring minimized electricity consumption. The HSU-09H03, in particular, distinguishes itself with its advanced inverter technology, enabling it to adjust the compressor speed to maintain the desired temperature more efficiently.

For medium-sized areas, the HSU-12C03 and HSU-12H03 offer enhanced power and cost efficiency. These models feature a sleek design and advanced filtration systems that improve indoor air quality. The HSU-12H03 includes Wi-Fi connectivity, allowing for remote control and monitoring through a mobile app, showcasing Haier’s commitment to convenience and modern living.

The HSU-18C03 and HSU-18H03 cater to larger spaces while ensuring reliable performance even under high demand. Boasting high cooling capacities, these models are equipped with multiple cooling modes and self-cleaning functions that enhance durability and maintain hygiene. The HSU-18H03 again benefits from inverter technology for optimum energy performance, thus reducing long-term operational costs.

For expansive areas, the HSU-22C03 and HSU-22H03 deliver top-notch cooling power without compromising on efficiency. Both models are designed with robust compressors capable of handling the demands of large spaces. They also feature advanced noise reduction technology, ensuring a quiet operation, making them perfect for homes and offices.

Across the entire range, Haier places a strong emphasis on energy efficiency, utilizing R32 refrigerant, which is known for its lower global warming potential. The air conditioners are equipped with user-friendly interfaces, customizable settings, and sleep mode features that adapt to the user's rhythm, providing maximum comfort and flexibility.

In summary, the Haier HSU series air conditioners are a robust solution for diverse cooling needs, combining efficiency, advanced technology, and user-friendly features to create an ideal indoor environment. Whether for small rooms or expansive areas, Haier’s offerings stand out in performance and reliability, embodying the brand's commitment to quality and customer satisfaction.