Daikin FVXS25FV1B Service Manual

Also see for RKS25F2V1B: Service manual Technical data

Contents

Daikin FVXS25FV1B Service Manual Manual pdf 92 page image

SiBE06-708Service Diagnosis 81Part 6Service Diagnosis1. Caution for Diagnosis............................................................................822. Problem Symptoms and Measures .......................................................833. Service Check Function ........................................................................844. Troubleshooting ....................................................................................874.1 Error Codes and Description ..................................................................874.2 Indoor Unit PCB Abnormality .................................................................884.3 Freeze-up Protection Control or High Pressure Control.........................894.4 Fan Motor (DC Motor) or Related Abnormality.......................................914.5 Thermistor or Related Abnormality (Indoor Unit)....................................934.6 Signal Transmission Error (between Indoor and Outdoor Units)............944.7 Unspecified Voltage (between Indoor and Outdoor Units) .....................964.8 Outdoor Unit PCB Abnormality...............................................................974.9 OL Activation (Compressor Overload) ...................................................984.10 Compressor Lock ...................................................................................994.11 DC Fan Lock ........................................................................................1004.12 Input Over Current Detection ...............................................................1014.13 Four Way Valve Abnormality................................................................1044.14 Discharge Pipe Temperature Control...................................................1084.15 High Pressure Control in Cooling .........................................................1104.16 Compressor System Sensor Abnormality ............................................1124.17 Position Sensor Abnormality ................................................................1154.18 DC Voltage / Current Sensor Abnormality............................................1164.19 CT or Related Abnormality ...................................................................1174.20 Thermistor or Related Abnormality (Outdoor Unit)...............................1194.21 Electrical Box Temperature Rise..........................................................1214.22 Radiation Fin Temperature Rise ..........................................................1234.23 Output Over Current Detection.............................................................1274.24 Insufficient Gas.....................................................................................1294.25 Low-voltage Detection or Over-voltage Detection................................1334.26 Signal Transmission Error on Outdoor Unit PCB .................................1355. Check ..................................................................................................1365.1 How to Check .......................................................................................136