Daikin FTX20K(2)V1B Service Manual

Also see for ARX20K2V1B: Installation manual

Contents

Daikin FTX20K(2)V1B Service Manual Manual pdf 75 page image

SiBE041525F TroubleshootingService Diagnosis 644.12 DC Fan LockError Code E7Method of ErrorDetectionAn error is determined with the high-voltage fan motor rotation speed detected by the Hall IC.Error DecisionConditions The fan does not start in 15 ~ 30 seconds (depending on the model) even when the fanmotor is running. If the error repeats, the system is shut down. Reset condition: Continuous run for about 11 minutes without any other errorSupposedCauses Disconnection of the fan motor Foreign matter stuck in the fan Defective fan motor Defective outdoor unit PCBTroubleshootingCheck No.16Refer to P.85 FU2(R21669)CautionYESYESNOYESNONOYESNONOTurn on the power.Rotate the fan.YESCheck No. 16Check the rotation pulse input onthe outdoor unit PCB (main PCB).Turn off the power andreconnect the connector.Remove the foreign matter.Replace the outdoor fanmotor.Replace the fuse.Replace the outdoor unitPCB (main PCB).Fan motor connectordisconnected?Foreign matter in oraround the fan?Replace the outdoor fanmotor.Fan rotatessmoothly?Pulse signal generated?Be sure to turn off the power switch before connecting or disconnectingconnectors, or parts may be damaged.Is the fuse () for thefan motor blown?