Daikin FTXN09KEVJU Service Manual

Also see for FTXN09KEVJU: Service manual Operation manual Operation manual Installation manual Operation manual

Contents

Daikin FTXN09KEVJU Service Manual Manual pdf 5 page image

SiUS041111Table of Contents iv4.8 Outdoor Unit PCB Abnormality................................................................... 894.9 OL Activation (Compressor Overload) ....................................................... 904.10 Compressor Lock ....................................................................................... 914.11 DC Fan Lock .............................................................................................. 924.12 Input Overcurrent Detection ....................................................................... 934.13 Four-Way Valve Abnormality...................................................................... 944.14 Discharge Pipe Temperature Control......................................................... 964.15 High Pressure Control in Cooling ............................................................... 984.16 Compressor System Sensor Abnormality ................................................ 1004.17 Position Sensor Abnormality .................................................................... 1014.18 DC Voltage / Current Sensor Abnormality (09/12 Class Only)................. 1034.19 Thermistor or Related Abnormality (Outdoor Unit)................................... 1044.20 Electrical Box Temperature Rise.............................................................. 1064.21 Radiation Fin Temperature Rise .............................................................. 1084.22 Output Overcurrent Detection .................................................................. 1104.23 Refrigerant Shortage ................................................................................ 1124.24 Low-voltage Detection or Over-voltage Detection.................................... 1145. Check ......................................................................................................1165.1 Thermistor Resistance Check .................................................................. 1165.2 Fan Motor Connector Output Check ........................................................ 1175.3 Power Supply Waveforms Check............................................................. 1185.4 Electronic Expansion Valve Check........................................................... 1185.5 Four-Way Valve Performance Check....................................................... 1195.6 Inverter Unit Refrigerant System Check................................................... 1195.7 “Inverter Checker” Check ......................................................................... 1205.8 Rotation Pulse Check on the Outdoor Unit PCB ...................................... 1225.9 Installation Condition Check..................................................................... 1235.10 Discharge Pressure Check....................................................................... 1245.11 Outdoor Fan System Check ..................................................................... 1245.12 Main Circuit Short Check.......................................................................... 1255.13 Power Module Check ............................................................................... 126Part 7Removal Procedure ........................................................... 1271. Indoor Unit: 09/12 Class..........................................................................1281.1 Removal of Air Filters ............................................................................... 1281.2 Removal of Horizontal Blade.................................................................... 1301.3 Removal of Front Panel............................................................................ 1321.4 Removal of Front Grille ............................................................................ 1331.5 Removal of Electrical Box / Vertical Blades ............................................. 1341.6 Removal of Swing Motor / PCBs .............................................................. 1391.7 Removal of Indoor Heat Exchanger ......................................................... 1431.8 Removal of Fan Rotor / Fan Motor........................................................... 1461.9 Exchange of Piping Direction (Drain Hose).............................................. 1492. Indoor Unit: 15/18/24 Class.....................................................................1502.1 Removal of Air Filters / Front Panel ......................................................... 1502.2 Removal of Front Grille ............................................................................ 153