Daikin FTXR28EV1B Service Manual

SiBE04-624
iv Table of Contents
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
3.2 Installation Condition Check.................................................................203
3.3 Outdoor Fan System Check (DC Motor) ..............................................203
3.4 Power Supply Waveform Check...........................................................204
3.5 Capacitor Voltage Check......................................................................204
3.6 Main Circuit Electrolytic Capacitor Check ............................................205
3.7 Refrigerant System Check ...................................................................205
3.8 “Inverter Checker” Check .....................................................................206
3.9 Power Transistor Check.......................................................................207
3.10 Discharge Pressure Check...................................................................208
3.11 Electronic Expansion Valve Check.......................................................209
3.12 Indoor Unit PCB Output Check ............................................................210
3.13 Rotating Pulse Input on Outdoor Unit PCB Check...............................211
3.14 Humidity Sensor Check........................................................................212
3.15 Main Circuit Short Check......................................................................212
3.16 Four-way Valve Performance Check....................................................213
3.17 Solenoid Valve for Dehumidification Check .........................................214

Daikin FTXR28EV1B Specifications

General

Brand	Daikin
Model	FTXR28EV1B
Category	Air Conditioner
Language	English