Haier HSU-22LV03 [3/32] General information

Haier air conditioner Edition: 1.0-061028

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1. General information

This Service Manual describes the operation, disassembly, troubleshooting, and

repair of Haier Room Air Conditioners, etc. It is intended for use by authorized services

who troubleshoot and repair these units.

It is assumed that users of this manual are familiar with the use of tools and

equipment used to troubleshoot and repair electrical, mechanical, and refrigeration

systems; and understand the terminology used to describe and discuss them.

Haier urges you read and follow all safety precautions and warnings contained in this

manual. Failure to comply with safety information may result in severe personal injury or

death.

Related Publications

This is a base service manual, covering a range of similar models. It is intended to be

used in conjunction with the Parts Manual and Technical Sheet covering specific model

being serviced.

NOTE: General Precautions and Warnings

WARNING

To avoid risk of personal injury or death due to electrical shock, disconnect electrical

power to unit before attempting to service the unit.

WARNING

To avoid risk of personal injury or death due to electrical shock, DO NOT, under any

circumstances, alter the grounding plug .Air conditioner must be grounded at all times. Do

not remove warning tag from power cord. If a two-prong (non-grounding) wall receptacle

is encountered, contact a qualified electrician and have the receptacle replaced with a

properly grounder wall receptacle in accordance with the National Electrical Code.

WARNING

To avoid risk of heat exposure, which may cause death or severe illness, air

conditioner must be monitored when malfunctions or shuts down.

WARNING

To avoid risk of personal injury or death due to electrical shock, grounding wires and

wires colored like grounding wires are NOT to be used as current carrying conductors.

The standard accepted color coding for ground wires is green or green with a yellow

stripe. Electrical components such as the compressor and fan motor are grounded

through an individual wire attached to the electrical component and to another part of the

air conditioner. Grounding wires should not to be removed from individual components

while servicing, unless the component is to be removed and replaced. It is extremely

important to replace all removed grounding wires before completing service.