Haier ADH071M1ERG Operation Manual And Installation Manual

Also see for ADH071M1ERG: Service manual Operation manual Operation manual and installation manual Operation manual and installation manual

Contents

13TroubleshootingINDOOR UNIT TROUBLE SHOOTINGMalfunction of indoor unitambient temperature sensorLED flash timesof indoor PCB WiredcontrollerdisplayLED4 LED3Contents of Malfunction Possible reasons0 1 01 Sensor disconected,or broken, or atwrong position,or short circuit0 2 02 Malfunction of indoor unitpiping temperature sensorSensor disconected,or broken,or atwrong position,or short circuit0 4 04 EEPROM wrong of indoorPCBEEPROM chip disconected or brokenor wrong programmed, or PCB broken0 7 07Abnormal communicationbetween indoor and outdoorunitsWrong connection,or the wires bedisconected or wrong address settingof indoor unit or faulty power supplyor PCB hardware malfunction0 8 / Abnormal communicationbetween wired controller andindoor unitWrong connection or wired controllerbroken,or PCB hardware malfunction0 12 0C Malfunction of drain systemPump motor disconnected or at wrongp o s i t i o n , o r t h e f l o a t s w i t c hdisconnected, or at wrong position,orthe short circuit bridge disconnected0 13 0D Zero cross signal wrong Zero cross signal detected wrong0 14 0EAbnormal communicationbetween main control PCB &fan motor drivercommunication wire disconnected orwrong connected or PCB hardwaremalfunction0 15 0F Fan motor overcurrent Fan motor current too high0 17 11 DC voltage high or low DC voltage of the fan motor driver toohigh or too low0 18 12 F.M.D temperature high Fan motor driver over 95 C0 19 13 Fan motor out of step Wrong rotor location detectedM( 1) N( 0) / Error of the outdoor unit See note 1,2Note:1.The outdoor failure can also be indicated by the indoor unit,the checking method as follows:outdoor unit error code=(M 10+N)-20.LED4 flash M times and LED3 flash N times .2.To get much more details about the out door unit failure,please refer to the outdoor unit trouble shooting list.