Daikin FTXR28EV1B Service Manual

SiBE04-624
Service Diagnosis 135
Part 6
Service Diagnosis
1. Convenient Service Check Function...................................................137
2. Troubleshooting ..................................................................................139
2.1 Error Code Indication by Remote Controller ........................................139
2.2 Air conditioner does not run. ................................................................141
2.3 Air conditioner runs but does not get cooling (heating)........................143
2.4 When operation starts, safety breaker works.......................................145
2.5 Air conditioner makes big noise and vibration......................................147
2.6 Air does not humidified enough............................................................148
2.7 Indoor Unit PCB Fault ..........................................................................150
2.8 Peak-cut Control or Freeze-up Protection............................................151
2.9 Fan Motor System (DC Motor) Fault ....................................................153
2.10 Streamer Unit Fault ..............................................................................155
2.11 Thermistor System Fault ......................................................................157
2.12 Front Panel Open / Close Fault............................................................158
2.13 Humidity Sensor Fault..........................................................................159
2.14 Signal Transmission Error (Indoor Unit - Outdoor Unit) .......................160
2.15 Incompatible Power Supply between Indoor Unit and Outdoor Unit ....162
2.16 Incomplete Setting for Hose Length.....................................................163
2.17 Outdoor Unit PCB Fault........................................................................164
2.18 OL Activation (Compressor Overload) .................................................165
2.19 Compressor Lock .................................................................................166
2.20 DC Fan Lock ........................................................................................167
2.21 Input Over Current Detection ...............................................................168
2.22 Four Way Valve Fault...........................................................................170
2.23 Discharge Pipe Temperature Control...................................................172
2.24 High Pressure Control in Cooling.........................................................173
2.25 Compressor Sensor System Fault .......................................................175
2.26 Damper Fault........................................................................................176
2.27 Position Sensor Fault ...........................................................................177
2.28 DC Voltage / DC Current Sensor Fault ................................................179
2.29 Thermistor System Fault ......................................................................180
2.30 Abnormal Temperature in Electrical Box..............................................182
2.31 Temperature Rise in Radiation Fin.......................................................184
2.32 Output Overcurrent...............................................................................186
2.33 Insufficient Gas.....................................................................................188
2.34 Over Voltage Protection / Low Voltage Protection ...............................190
2.35 Outdoor Unit PCB Fault or Communication Circuit Fault .....................191
2.36 Signal Transmission Error on Outdoor Unit PCB .................................194
2.37 Fan Motor System Fault / Fan Lock .....................................................196
2.38 Heater Wire Fault .................................................................................197
2.39 Humidification Fan Outlet Thermistor Fault /
Abnormal Heater Temperature.............................................................199
2.40 Lights-out of Microcomputer Status Lamp............................................201
3. Check..................................................................................................202
3.1 Thermistor Resistance Check ..............................................................202

Daikin FTXR28EV1B Specifications

General

Brand	Daikin
Model	FTXR28EV1B
Category	Air Conditioner
Language	English