Midea MS9A-09HRDN1-QC2, Service Manual

1

1. Precaution 

1.1  Safety Precaution 

„

To prevent injury to the user or other people 

and property damage, the following instructions 

must be followed. 

„

Incorrect operation due to ignoring 

instruction will cause harm or damage.   

„

Before service unit, be sure to read this 

service manual at first. 

1.2  Warning 

¾

Installation 

„

Do not use a defective or underrated circuit 

breaker. Use this appliance on a dedicated 

circuit. 

There is risk of fire or electric shock. 

„

For electrical work, contact the dealer, seller, 

a qualified electrician, or an Authorized service 

center. 

Do not disassemble or repair the product, there is 
risk of fire or electric shock. 

„

Always ground the product. 

There is risk of fire or electric shock. 

„

Install the panel and the cover of control 

box securely. 

There is risk of fire of electric shock. 

„

Always install a dedicated circuit and 

breaker. 

Improper wiring or installation may cause fore or 
electric shock. 

„

Use the correctly rated breaker of fuse. 

There is risk of fire or electric shock. 

„

Do not modify or extend the power cable. 

There is risk of fire or electric shock. 

„

Do not install, remove, or reinstall the unit 

by yourself(customer). 

There is risk of fire, electric shock, explosion, or 
injury. 

„

Be caution when unpacking and installing 

the product. 

Sharp edges could cause injury, be especially 
careful of the case edges and the fins on the 
condenser and evaporator. 

„

For installation, always contact the dealer or 

an Authorized service center. 

There is risk of fire, electric shock, explosion, or 
injury. 

„

Do not install the product on a defective 

installation stand. 

It may cause injury, accident, or damage to the 
product. 

„

Be sure the installation area does not 

deteriorate with age. 

If the base collapses, the air conditioner could fall 
with it, causing property damage, product failure, 
and personal injury. 

„

Do not let the air conditioner run for a long 

time when the humidity is very high and a door 

or a window is left open. 

Moisture may condense and wet or damage 
furniture. 

„

Take care to ensure that power cable could 

not be pulled out or damaged during operation. 

There is risk of fire or electric shock. 

„

Do not place anything on the power cable. 

There is risk of fire or electric shock. 

„

Do not plug or unplug the power supply 

plug during operation. 

There is risk of fire or electric shock. 

„

Do not touch (operation) the product with 

wet hands. 

There is risk of fire or electric shock. 

„

Do not place a heater or other appliance 

near the power cable. 

There is risk of fire and electric shock. 

„

Do not allow water to run into electric parts. 

It may cause fire, failure of the product, or electric 
shock. 

„

Do not store or use flammable gas or 

combustible near the product. 

There is risk of fire or failure of product. 

„

Do not use the product in a tightly closed 

space for a long time. 

Oxygen deficiency could occur. 

„

When flammable gas leaks, turn off the gas 

and open a window for ventilation before turn the 

product on. 

Do not use the telephone or turn switches on or off. 
There is risk of explosion or fire. 

„

If strange sounds, or small or smoke comes 

from product. Turn the breaker off or disconnect 

the power supply cable. 

There is risk of electric shock or fire. 

„

Stop operation and close the window in 

storm or hurricane. If possible, remove the 

product from the window before the hurricane