Edition:2006/1/10
Safety Information 
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 servicers who troubleshoot and repair these units. 
NOTE: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. 
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 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.   
WARNING
To avoid risk of heat exposure,which may cause death or severe illness,air conditioner must be 
monitored when malfunctions or shuts down.