Haier N Series Service Manual
Also see for 2U14CS4ERA: Installation manual
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Contents
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..4 Outdoor DC fan motor faultOutdoor display LED1 flash 9 timesDC fan motor is detected by checking the fan running condition and so onwhen the data of EEPROM is error or the EEPROM is damagedƵ DC fan motor protection dues to the DC fan motor faultyƵ DC fan motor protection dues to faulty PCB* Caution Be sure to turn off power switch before connect or disconnect connector, or parts damagemay be occurred.Check whether Terminal on the outdoormainboard is well inserted. Is it normal?YesNO Reinsert the terminalsElectrify the machine again and turn iton in the Cool state with the remotecontroller. check whether motor canrun˛YesMeasure the voltage between 3 and 6 ofthe terminal about 0-5v.Is it normal?N0the motor of the outdoor unit is damaged andneeds replacing.Measure the voltage between 1 and 3 of the terminal offan motor on the mainboard about DC310V, Measurethe voltage between 3 and 4 of the terminal aboutDC15V. Measure the voltage between 5 and 3 of theterminal about 1-6v.NOIs it normal?The mainboard of the outdoor unit isdamaged and needs replacingN0YesYesService diagnosisDomestic air conditionerConditionsSupposedCausesTroubleshootingMethod ofmalfunction detectionMalfunction detectionconditions |
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