Daikin FDYMP71L7V1 Installation And Operation Manual

Contents

Installation and operation manual7 FDYMP71~125L7V1Split System air conditioners4PW14036-1BNOT A MALFUNCTION OF THE AIR CONDITIONERThe following symptoms do not indicate air conditioner malfunction.The system does not operate■ The system does not restart immediately after the ON/OFFbutton is pressed.If the OPERATION lamp lights, the system is in its normaloperating condition.It does not restart immediately because one of its safety devicesactuates to prevent the system from being overloaded.The system will turn on again automatically after three minutes.■ The system does not restart immediately when theTEMPERATURE SETTING button is returned to its formerposition after pushing.It does not restart immediately because one of its safety devicesactuates to prevent the system from being overloaded.The system will turn on again automatically after three minutes.■ The system does not start when the display shows " "(EXTERNAL CONTROL ICON) and it flashes for a few secondsafter pressing an operation button.This is because the system is controlled or disabled by anothercontroller with a higher priority.When the display flashes, it indicates that the system cannot becontrolled by this indoor unit.■ The system does not start immediately after the power supply isturned on.Wait one minute until the micro computer is prepared foroperation.White mist comes out of a unit■ When humidity is high during cooling operation (In oily or dustyplaces).If the inside of an indoor unit is extremely contaminated, thetemperature distribution inside a room becomes uneven. It isnecessary to clean the inside of the indoor unit. Ask your Daikindealer for details on cleaning the unit. This operation requires aqualified service person.■ When the system is changed over to HEATING OPERATIONafter DEFROST OPERATION.Moisture generated by DEFROST becomes steam and exits.Noise of air conditioners■ A continuous low "hissing" sound is heard when the system is inCOOLING or DEFROST OPERATION.This is the sound of refrigerant gas flowing through both indoorand outdoor units.■ A "hissing" sound which is heard at the start or immediately afterthe stop of operation or which is heard at the start orimmediately after the stop of DEFROST OPERATION.This is the noise of refrigerant caused by flow stop and flowchange.■ A "squeaking" sound is heard when the system is in operation orafter the stop of operation.Expansion and contraction of plastic parts caused bytemperature change makes this noise.Dust from the units■ Dust may blow out from the unit after starting operation fromlong resting time. Dust absorbed by the unit blows out.The units give off odours■ The unit absorbs the smell of rooms, furniture, cigarettes, etc.,and then emits them.The liquid crystal display of the remote controller shows " "■ Happens immediately after the main power supply switch isturned on.Shows that the remote controller is in normal condition.Continues temporarily.TROUBLESHOOTINGIf one of the following malfunctions occurs, take the measures shownbelow and contact your Daikin dealer.The system must be repaired by a qualified service person.■ If a safety device such as a fuse, a breaker, or an earth leakagebreaker frequently actuates, or ON/OFF switch does notproperly work.Measure: Turn off the main power switch.■ If water leaks from unit.Measure: Stop the operation.■ If the display " " (INSPECTION), "UNIT No.", and theOPERATION lamp flashes and the "MALFUNCTION CODE"appears.Measure: Notify your Daikin dealer and inform him/her of thedisplay.If the system does not operate properly, except for the abovementioned case, and none of the above mentioned malfunctions isevident, investigate the system according to the following procedures.If the system does not operate at all.■ Check if there is a power failure.Wait until power is restored. If power failure occurs duringoperation, the system automatically restarts immediately afterthe power supply recovers.■ Check if the fuse has blown or breaker has been tripped.Change the fuse or set the breaker.If the system stops operating after operation is complete.■ Check if the air inlet or outlet of outdoor or indoor unit is blockedby obstacles.Remove the obstacle and make it well-ventilated.■ Check if the air filter is clogged.Ask a qualified service person to clean the air filter.The system operates but it does not sufficiently cool or heat.■ If the air inlet or outlet of the indoor or the outdoor unit is blockedwith obstacles.Remove the obstacle and make it well-ventilated.■ If the air filter is clogged.Ask a qualified service person to clean the air filter.■ If the set temperature is not proper. (Refer to the manual of theremote controller.)■ If the FAN SPEED CONTROL button is set to LOW SPEED.(Refer to the manual of the remote controller.)■ If the doors or the windows are open. Shut doors or windows toprevent wind from coming in.■ If direct sunlight enters the room (when cooling).Use curtains or blinds.■ When there are too many inhabitants in the room. Cooling effectdecreases if heat gain of the room is too large.■ If the heat source of the room is excessive (when cooling).Cooling effect decreases if heat gain of the room is too large.

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