Toshiba MMY-MAP0724HT6UL Service Manual Download

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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

Turn off

breaker.

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 starting to repair the outdoor unit fan or fan guard, be absolutely sure to set the circuit
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 an error 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.

Electric shock

hazard

When you access inside of the service panel 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.

Prohibition

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.
Before operating the air conditioner after having completed the work, check that the electrical control 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.

Stay on

protection

If, in the course of carrying out repairs, it becomes absolutely necessary to check out the electrical parts with

the electrical control 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.
You may receive an electric shock if you fail to heed this warning. Only qualified service person (*1) is allowed

to do this kind of work.