Daikin FTXS50K2V1B - Troubleshooting Unit Malfunctions; Pre-Service Checks; Unit Not Operating; Poor Performance Diagnosis

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Troubleshooting
•Troubleshootingmeasuresareclassiedintothefollowingtwotypesonaremedialbasis.
Takeanappropriatemeasureaccordingtothesymptom.
Not trouble
•Thesecasesarenottroubles.
Check
•Pleasecheckagainbeforecallinga
repairperson.
The air conditioner does not operate.
(OPERATION lamp is off.)
•Hasn’tabreakerturnedofforafuseblown?
•Isn’titapowerfailure?
•Arebatteriessetintheremotecontroller?
•Isthetimersettingcorrect?
Cooling (Heating) effect is poor.
•Aretheairltersclean?
•Isthereanythingtoblocktheairinletortheoutletof
theindoorandtheoutdoorunits?
•Isthetemperaturesettingappropriate?
•Arethewindowsanddoorsclosed?
•Aretheairowrateandtheairowdirectionset
appropriately?
An abnormal functioning happens
during operation.
•Theairconditionermaymalfunctionwithlightningor
radiowaves.Turnthebreakeroff,turnitonagainand
tryoperatingtheairconditionerwiththeremote
controller.
Operation stopped suddenly.
(OPERATION lamp fl ashes.)
•Aretheairltersclean?
Cleantheairlters.
•Isthereanythingtoblocktheairinletortheoutletof
theindoorandtheoutdoorunits?
•Turnthebleakeroffandtakeallobstaclesaway.Then
turnitonagainandtryoperatingtheairconditioner
withtheremotecontroller.Ifthelampstillashes,call
theserviceshopwhereyouboughttheairconditioner.
•Areoperationmodesallthesameforindoorunits
connectedtooutdoorunitsinthemultisystem?
Ifnot,setallindoorunitstothesameoperationmode
andconrmthatthelampsash.
Moreover,whentheoperationmodeisinAUTO,setall
indoorunitoperationmodestoCOOLorHEATfora
momentandcheckagainthatthelampsarenormal.If
thelampsstopashingaftertheabovesteps,thereis
nomalfunction.
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Operation stopped suddenly.
(OPERATION lamp is on.)
•Forsystemprotection,theairconditionermaystop
operatingonasuddenlargevoltageuctuation.It
automaticallyresumesoperationinabout3minutes.
Mist comes out of the indoor unit.
•Thishappenswhentheairintheroomiscooledinto
mistbythecoldairowduringCOOLoperation.
•Thisisbecausetheairintheroomiscooledbythe
heatexchangerandbecomesmistduringdefrost
operation.
01_EN_3P320970-1A.indd 37 12/20/2012 11:22:43 AM