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-07HV03, HSU-09HV03, HSU-12HV03, HSU-18HV03, HSU-22HV03, HSU-12HVB03 specifications

Haier, a global leader in home appliances, offers a range of highly efficient air conditioning units designed to provide optimal comfort in various environments. Among their notable products are the HSU-07HV03, HSU-09HV03, HSU-12HV03, HSU-18HV03, HSU-22HV03, and HSU-12HVB03 models, each boasting an array of features and cutting-edge technology suited for different cooling needs.

The HSU series showcases advanced inverter technology, which enhances energy efficiency by adjusting the compressor's speed according to cooling requirements. This results in significant energy savings, lower electricity bills, and reduced environmental impact. Users benefit from consistent temperature control, as the inverter technology reduces temperature fluctuations, leading to a more comfortable indoor environment.

All models in this series are equipped with high-performance filters that purify the air and eliminate allergens. The multi-stage filtration system effectively captures dust, pollen, and other pollutants, ensuring a cleaner and healthier atmosphere for occupants. This feature is especially beneficial for individuals with allergies or respiratory conditions.

Additionally, the HSU series incorporates a quiet operation mode, allowing these air conditioners to function with minimal noise, making them ideal for bedrooms, offices, and other quiet spaces. The low-noise technology ensures peace and tranquility, without compromising on performance.

Smart features are also a significant highlight in the HSU-12HVB03 model. It supports Wi-Fi connectivity, enabling users to control the unit remotely through a smartphone app. This feature streamlines the cooling process, allowing for precise temperature regulation from anywhere in the home or office, increasing convenience and comfort.

The design of these units is sleek and modern, blending seamlessly with any interior decor. Their compact size makes them suitable for residential and commercial spaces alike, without taking up valuable floor space.

With a variety of capacities ranging from 7,000 to 22,000 BTUs, the HSU models cater to different room sizes and cooling demands. This flexibility ensures that users can select the perfect unit to meet their specific requirements, whether for small apartments or larger living areas.

In summary, the Haier HSU series, including HSU-07HV03, HSU-09HV03, HSU-12HV03, HSU-18HV03, HSU-22HV03, and HSU-12HVB03, stands out for its energy efficiency, advanced air purification, quiet operation, and smart features. These characteristics make them a reliable choice for anyone looking to enhance their indoor comfort while maintaining a focus on sustainability and health.