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PRECAUTIONS FOR SAFETY
The manufacturer shall not assume any liability for the damage caused by not observing the description of this
manual.
DANGER
Before carrying out the installation, maintenance, repair or removal work, be sure to set the circuit
breaker for both the indoor and outdoor units to the OFF position. Otherwise, electric shocks may
result.
Before opening the intake grille of the indoor unit or service panel of the outdoor unit, set the circuit
breaker to the OFF position. Failure to set the circuit breaker to the OFF position may result in electric
shocks through contact with the interior parts. Only a qualified installer (*1) or qualified service person
(*1) is allowed to remove the intake grille of the indoor unit or service panel of the outdoor unit and do
the work required.
Before opening the electric box cover set the circuit breaker to the OFF position.
Failure to set the circuit breaker to the OFF position may result in injury through contact with the rotation parts.
Only a qualified installer (*1) or qualified service person (*1) is allowed to remove the electric box cover
and do the work required.
Turn off
Before starting to repair the outdoor unit fan or fan guard, be absolutely sure to set the circuit breaker
breaker
to the OFF position, and place a "Work in progress" sign on the circuit breaker.
When cleaning the filter or other parts of the indoor unit, set the circuit breaker to OFF without fail, and
place a "Work in progress" sign near the circuit breaker before proceeding with the work.
When you have noticed that some kind of trouble (such as when a check code display has appeared,
there is a smell of burning, abnormal sounds are heard, the air conditioner fails to cool or heat or water
is leaking) has occurred in the air conditioner, do not touch the air conditioner yourself but set the
circuit breaker to the OFF position, and contact a qualified service person. Take steps to ensure that
the power will not be turned on (by marking "out of service" near the circuit breaker, for instance) until
qualified service person arrives. Continuing to use the air conditioner in the trouble status may cause
mechanical problems to escalate or result in electric shocks or other failure.
When you access inside of the electric cover to repair electric parts, wait for about five minutes after turning
off the breaker. Do not start repairing immediately. Otherwise you may get electric shock by touching
terminals of high-voltage capacitors. Natural discharge of the capacitor takes about five minutes.
When checking the electric parts, removing the cover of the electric parts box of indoor unit and/or
service panel of outdoor unit inevitably to determine the failure, use gloves to provide protection for
Electric
electricians, insulating shoes, clothing to provide protection from electric shock and insulating tools. Be
shock hazard
careful not to touch the live part. Electric shock may result. Only "Qualified service person" is allowed to
do this work.
Place a "Work in progress" sign near the circuit breaker while the installation, maintenance, repair or
removal work is being carried out.
There is a danger of electric shocks if the circuit breaker is set to ON by mistake.
When checking the electric parts, removing the cover of the electric parts box of Indoor Unit and/or
front panel of outdoor unit inevitably to determine the failure, put a sign "Do not enter" around the site
before the work. Failure to do this may result in third person getting electric shock.
Prohibition
Before operating the air conditioner after having completed the work, check that the electrical parts box
cover of the indoor unit and service panel of the outdoor unit are closed, and set the circuit breaker to
the ON position.
You may receive an electric shock if the power is turned on without first conducting these checks.
If, in the course of carrying out repairs, it becomes absolutely necessary to check out the electrical
parts with the electrical parts box cover of one or more of the indoor units and the service panel of the
outdoor unit removed in order to find out exactly where the trouble lies, wear insulated heat-resistant
gloves, insulated boots and insulated work overalls, and take care to avoid touching any live parts.
Stay on
You may receive an electric shock if you fail to heed this warning. Only qualified service person (*1) is
protection
allowed to do this kind of work.
(*1) Refer to the "Definition of Qualified Installer or Qualified Service Person"
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Troubleshooting
