Daikin FTX-N Series Service Manual

Also see for FDMQ-R Series: Manual Service manual Service manual Manual

Contents

Daikin FTX-N Series Service Manual Manual pdf 111 page image

SiUS091601EAPart 6 Service Diagnosis 1061. General Problem Symptoms and Check Items .......................................1082. Troubleshooting with LED .......................................................................1092.1 Indoor Unit................................................................................................ 1092.2 Outdoor Unit ............................................................................................. 1103. Service Diagnosis ...................................................................................1113.1 ARC480 Series......................................................................................... 1113.2 ARC466 Series......................................................................................... 1143.3 BRC1E73 ................................................................................................. 1173.4 BRC082A43 ............................................................................................. 1194. Error Codes and Description...................................................................1235. Troubleshooting for FTX, FVXS Series...................................................1245.1 Indoor Unit PCB Abnormality ................................................................... 1245.2 Freeze-up Protection Control/Heating Peak-cut Control .......................... 1265.3 Indoor Fan Motor (DC Motor) or Related Abnormality ............................. 1285.4 Thermistor or Related Abnormality........................................................... 1325.5 Low-voltage Detection or Over-voltage Detection.................................... 1335.6 Signal Transmission Error (Between Indoor Unit and Outdoor Unit)........ 1355.7 Unspecified Voltage (Between Indoor Unit and Outdoor Unit) ................. 1376. Troubleshooting for FDMQ Series ..........................................................1386.1 Indoor Unit PCB Abnormality ................................................................... 1386.2 Drain Level Control System Abnormality.................................................. 1396.3 Indoor Fan Motor (DC Motor) or Related Abnormality ............................. 1406.4 Indoor Fan PCB Abnormality.................................................................... 1426.5 Humidifier or Related Abnormality............................................................ 1436.6 Thermistor or Related Abnormality........................................................... 1446.7 Remote Controller Thermistor Abnormality .............................................. 1456.8 Low-voltage Detection or Over-voltage Detection.................................... 1466.9 Signal Transmission Error (Between Indoor and Outdoor Unit) ............... 1486.10 Signal Transmission Error (Between Indoor Unit and Remote Controller)................................................................................................................. 1506.11 Signal Transmission Error (Between MAIN/SUB Remote Controllers) .... 1516.12 Mismatching of Indoor Unit and Outdoor Unit .......................................... 1527. Troubleshooting for Outdoor Unit............................................................1537.1 Outdoor Unit PCB Abnormality................................................................. 1537.2 OL Activation (Compressor Overload) ..................................................... 1547.3 Compressor Lock ..................................................................................... 1577.4 DC Fan Lock ............................................................................................ 1587.5 Input Overcurrent Detection ..................................................................... 1597.6 Four Way Valve Abnormality.................................................................... 161Part 6Service Diagnosis