Daikin CTXA15A2V1BW Operation Manual

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Daikin CTXA15A2V1BW Operation Manual Manual pdf 18 page image

7 TroubleshootingOperation manual18(C)(F)TXA15~50A2V1B(W)(S)(T)Daikin room air conditioner3P485919-7C – 2017.12Malfunction MeasureThe system operates,but cooling or heatingis insufficient.▪ Check the airflow rate setting. Refer to"4.3.2 Airflow rate" on page 7.▪ Check the temperature setting. Refer to"4.3.1 To start/stop operation and to setthe temperature" on page 7.▪ Check if the airflow direction setting isappropriate. Refer to "4.3.3 Airflowdirection" on page 7.▪ Check if the air inlet or outlet of theoutdoor or indoor unit is NOT blocked byobstacles. Remove any obstacles andmake sure the air can flow freely.▪ Check if the air filters are clogged. Cleanthe air filters. See "6 Maintenance andservice" on page 14.▪ Check for open doors or windows. Closedoors and windows to prevent wind fromcoming in.▪ Check if the unit operates in Econo orOutdoor unit quiet operation. Refer to"4.3.6 Econo and Outdoor unit quietoperation" on page 9.▪ Check if there is any furniture directlyunder or next to the indoor unit. Move thefurniture.The system operates,but heating isinsufficient (air is NOTblown from the unit).▪ The air conditioner may be warming upfor heating operation. Wait for about 1 to4 minutes.▪ If a flowing sound is heard, the outdoorunit may be in defrost operation. Wait forabout 4 to 12 minutes.The front panel doesNOT open.Check for the obstacles and try to open thefront panel using the user interface. Referto "6.4 To open the front panel" on page 15.The ON/OFF timerdoes NOT operateaccording to thesettings.▪ Check if the Weekly timer and ON/OFFtimer are set to the same time. Changeor deactivate the setting. Refer to"4.5 OFF/ON timer operation" on page 9and "4.6 Weekly timer operation" onpage 10.▪ Check if the clock and the day of theweek are set correctly. Refer to"3.3 Clock" on page 5.Heating operationCANNOT be selected.Check if the user interface's jumper J8 hasNOT been cut.J8An abnormal functionhappens duringoperation.The air conditioner may malfunctionbecause of lightning or radio waves. Turnthe breaker OFF and back ON.The unit does NOTreceive signals fromthe user interface.▪ Check the batteries of the user interface.Refer to "3.2 To insert the batteries" onpage 4.▪ Make sure that the transmitter is NOTexposed to direct sunlight.▪ Check if there are any electronic startertype fluorescent lamps in the room.Contact your dealer.The user interfacedisplay is blank.Replace the batteries of the user interface.Malfunction MeasureAn error code isdisplayed on the userinterface.Consult your local dealer. Refer to"7.2 Solving problems based on errorcodes" on page 19 for a detailed list oferror codes.Other electricappliances start tooperate.If the user interface signals operate otherelectric appliances, move the otherappliances away, and contact your dealer.If after checking all above items, it is impossible to fix the problemyourself, contact your installer and state the symptoms, the completemodel name of the unit (with manufacturing number if possible) andthe installation date (possibly listed on the warranty card).7.1 Symptoms that are NOT systemmalfunctionsThe following symptoms are NOT system malfunctions:7.1.1 Symptom: A sound like water flowing isheard▪ This sound is caused by the refrigerant flowing in the unit.▪ This sound may be generated when water is flowing away fromthe unit during cooling or drying operation.7.1.2 Symptom: A blowing sound is heardThis sound is generated when the direction of the refrigerant flow ischanged (e.g. when switching from cooling to heating).7.1.3 Symptom: A ticking sound is heardThis sound is generated when the unit slightly expands or contractswith changes in temperature.7.1.4 Symptom: A whistling sound is heardThis sound is generated by the refrigerant flowing during defrostoperation.7.1.5 Symptom: A clicking sound duringoperation or idle time is heardThis sound is generated when the refrigerant control valves orelectrical parts operate.7.1.6 Symptom: A clapping sound is heardThis sound is generated when an external device sucks air out of theroom (e.g. exhaust fan, extractor hood) while the doors and windowsin the room are closed. Open the doors or windows, or turn off thedevice.7.1.7 Symptom: White mist comes out of a unit(Indoor unit, outdoor unit)When the system is changed over to heating operation after defrostoperation. Moisture generated by defrost becomes steam and isexhausted.7.1.8 Symptom: The units can give off odoursThe unit can absorb the smell of rooms, furniture, cigarettes, etc.,and then emit it again.