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WARNING
Before starting to repair the air conditioner, read carefully through the Service Manual, and repair the air
conditioner by following its instructions.
Only qualified service person is allowed to repair the air conditioner.
Repair of the air conditioner by unqualified person may give rise to a fire, electric shocks, injury, water leaks
and/or other problems.
Do not use any refrigerant different from the one specified for complement or replacement.
Otherwise, abnormally high pressure may be generated in the refrigeration cycle, which may result in a failure
or explosion of the product or an injury to your body.
Only a qualified installer or qualified service person is allowed to carry out the electrical work of the air
conditioner.
Under no circumstances must this work be done by an unqualified individual since failure to carry out the work
properly may result in electric shocks and/or electrical leaks.
Wear protective gloves and safety work clothing during installation, servicing and removal.
When connecting the electrical wires, repairing the electrical parts or undertaking other electrical jobs, wear
gloves to provide protection for electricians, insulating shoes and clothing to provide protection from electric
shocks. Failure to wear this protective gear may result in electric shocks.
Electrical wiring work shall be conducted according to law and regulation in the community and installation
manual. Failure to do so may result in electrocution or short circuit.
Only a qualified installer or qualified service person is allowed to undertake work at
heights using a stand of 50 cm or more or to remove the intake grille of the indoor unit to
undertake work.
General
When working at heights, use a ladder which complies with the ISO 14122 standard, and follow the procedure
in the ladder's instructions.
Also wear a helmet for use in industry as protective gear to undertake the work.
When transporting the air conditioner, use a forklift and when moving the air conditioner by hand, move the
unit with 5 people.
When executing address setting, test run, or troubleshooting through the checking window on the electrical
control box, put on insulated gloves to provide protection from electric shock. Otherwise you may receive an
electric shock.
Do not touch the aluminum fin of the outdoor unit.
You may injure yourself if you do so. If the fin must be touched for some reason, first put on protective gloves
and safety work clothing, and then proceed.
Do not climb onto or place objects on top of the outdoor unit.
You may fall or the objects may fall off of the outdoor unit and result in injury.
When transporting the air conditioner, wear shoes with additional protective toe caps.
When transporting the air conditioner, do not take hold of the bands around the packing carton.
You may injure yourself if the bands should break.
Be sure that a heavy unit (10 kg or heavier) such as a compressor is carried by two persons.
Before troubleshooting or repair work, check the earth wire is connected to the earth terminals of the main unit,
otherwise an electric shock is caused when a leak occurs.If the earth wire is not correctly connected, contact
an electric engineer for rework.
After completing the repair or relocation work, check that the ground wires are connected properly.
Check earth
Be sure to connect earth wire. (grounding work) Incomplete grounding causes an electric shock.
wires.
Do not connect ground wires to gas pipes, water pipes, and lightning rods or ground wires for telephone wires.
Do not modify the products.Do not also disassemble or modify the parts.
It may cause a fire, electric shock or injury.
Prohibition of
modification.
When any of the electrical parts are to be replaced, ensure that the replacement parts satisfy the specifications
given in the Service Manual (or use the parts contained on the parts list in the Service Manual).
Use of any parts which do not satisfy the required specifications may give rise to electric shocks, smoking and/
Use specified
or a fire.
parts.
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Troubleshooting
