Toshiba MMD-AP0481HF2UL Service Manual

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– 74 –– 2 –ENOperation• Before opening the intake grille of the indoor unit set the circuit breaker to the OFF position. Failure to set the circuitbreaker to the OFF position may result in electric shocks through contact with the interior parts. Only a qualifiedinstaller or qualified service person is allowed to remove the intake grille of the indoor unit or service panel of theoutdoor unit and do the work required.• Inside the air conditioner are high-voltage areas and rotating parts. Due to the danger of electric shocks or of yourfingers or physical objects becoming trapped in the rotating parts, do not remove the intake grille of the indoor unit orservice panel of the outdoor unit. When work involving the removal of these parts is required, contact a qualifiedinstaller or a qualified service person.• Do not move or repair any unit by yourself. Since there is high voltage inside the unit, you may get electric shockduring removing the cover and main unit.• Use of a stand more than 50 cm high to clean the filter of the indoor unit or to carry out other such jobs constitutesworking at heights. Due to the danger of falling off the stand and injuring yourself while working at heights, this kindof work should not be done by unqualified individuals. When this kind of work must be carried out, do not do it yourselfbut ask a qualified installer or a qualified service person to do it for you.• Do not touch the aluminum fin of the outdoor unit. You may injure yourself if you do so. If the fin must be touched, donot touch it yourself but contact a qualified installer or a qualified service person.• Do not climb onto or place objects on top of the outdoor unit. You may fall or the objects may fall off of the outdoorunit and result in injury.• Do not place any combustion appliance in a place where it is directly exposed to the wind of air conditioner, otherwiseit may cause imperfect combustion.• When the air conditioner is operated with a combustion appliance in the same place, ventilate the room adequately.Poor ventilation may causes oxygen shortage.• When the air conditioner is used in a closed room, ventilate the room. Poor ventilation may causes oxygen shortage.• Do not expose your body to cool air directly for a long time and do not cool yourself excessively.Doing so may result in deteriorated physical condition and ill health.• Do not insert your finger or a stick into the air intake or outlet.Doing so may result injury as the fan is rotating at high speed inside the unit.• Consult the shop where you purchased the air conditioner if air conditioning (cooling and heating) is not performedproperly as a refrigerant leakage may be the cause. Confirm the repair details with a qualified service person whenthe repair includes additional charging of the refrigerant.• Stop running the air conditioner and turn off the breaker before cleaning.Otherwise, injury may result as the fan is rotating at high speed inside the unit.Repairs• If there is any kind of trouble (such as when check code display has appeared, there is a smell of burning, abnormal soundsare heard, the air conditioner fails to cool or heat or water is leaking) has occurred in the air conditioner, do not touch theair conditioner yourself but set the circuit breaker to the OFF position, and contact a qualified service person. Take steps toensure that the power will not be turned on (by marking “out of service” near the circuit breaker, for instance) until qualifiedservice person arrives. Continuing to use the air conditioner in the trouble status may cause mechanical problems toescalate or result in electric shocks or other failure.• If the fan grille is damaged, do not approach the outdoor unit but set the circuit breaker to the OFF position, and contact aqualified service person to have the repairs done. Do not set the circuit breaker to the ON position until the repairs arecompleted.• If there is a danger of the indoor unit’s falling, do not approach the indoor unit but set the circuit breaker to the OFF position,and contact a qualified installer or a qualified service person to refit the unit. Do not set the circuit breaker to the ON positionuntil the unit has been refitted.• If there is a danger of the outdoor unit’s toppling over, do not approach the outdoor unit but set the circuit breaker to theOFF position, and contact a qualified installer or a qualified service person to have the improvements or refitting done. Donot set the circuit breaker to the ON position until the improvements or refitting is completed.• Do not customize the unit. Doing so may result in fire, electric shock or other failure.Relocation• When the air conditioner is to be relocated, do not relocate it yourself but contact a qualified installer or a qualified serviceperson. Failure to relocate the air conditioner properly may result in electric shocks and/or a fire.CAUTIONCautions about installation (Confirm the following cautions.)• Certainly lay the drain hose for perfect draining. Bad drainage may cause flooding in the house and getting furniturewet.• Use an exclusive power supply circuit for air conditioner at the rated voltage. An insufficient power supply capacityor inappropriate installation may cause fire.• Confirm that the outdoor unit are fixed on the base. Otherwise, falling down of the units or other accidents may occur.Cautions about operation• Do not use this air conditioner for special purpose such as preserving food, precision instruments, art objects,breeding animals, car, vessel, etc.• Do not operate the buttons with wet hands. Doing so may cause electric shock.• If the air conditioner will not be used for a considerably long time, turn off the main switch or the circuit breaker, forsafety.• To make the air conditioner operate in its original performance, operate it within the range of the operatingtemperature specified in the instructions. Otherwise it may cause a malfunction, or water leak from the unit.• Prevent any liquid from falling into the remote control. Do not spill juice, water or any kind of liquid.• Do not wash the air conditioner. Doing so may result in electric shock.• Check whether the installation base and other equipment have become deteriorated after being used for a long time.Leaving them such condition may result in the unit’s falling down and causing injury.• Do not leave flammable sprays or other flammable materials near the air conditioner, and do not spray flammableaerosol directly to the air conditioner. They may catch fire.• Stop running the air conditioner and turn off the breaker before cleaning.Otherwise, injury may result as the fan is rotating at high speed inside the unit.• Ask an authorized dealer or qualified service person for cleaning of the air conditionerCleaning the air conditioner in an improper manner may cause damage to plastic parts, insulation failure of electricparts, and result in a malfunction. In the worst case, it may result in water leakage, electric shock, smoke emissionand fire.• Do not put a water container such as a vase on the unit.Water intrusion into the unit may occur and it may cause deterioration of electric insulation and result in electric shock.3-EN 4-EN