Fault Diagnosis; System Configuration - Daikin FTK25JVE9 Service Manual

Si04-115
Trouble Shooting

Fault diagnosis

FAULT DIAGNOSIS BY REMOTE CONTROLLER
IN THE EVENT OF AN ABNORMALITY, THE RELEVANT ABNORMALITY CODE APPEARS FLASHING
IN THE REMOTE CONTROLLER'S TEMPERATURE DISPLAY.
CODE
00
U0
U2
SYSTEM
U4 INCORRECT INTERUNIT WIRING(INTERUNIT)
U5
A5
INDOOR
A6
UNIT
C4 OR C5
C9 FAULTY SUCTION AIR TEMPERATURE SENSOR

System Configuration

MEANING
NORMAL
REFRIGEMENT SHORTAGE
POWER FACTOR MODULE ABNORMALITY
INCORRECT INTERUNIT WIRING
(INDOOR UNIT-REMOTE CONTROLLER)
FREEZE-UP PROTECTOR "OR STOPPED
BY HIGH PRESSURE CONTROL"
FAN MOTOR FAULT
FAULTY HEAT EXCHANGER SENSOR
CODE
INTERNAL THERMOSTAT WORKED OR
E5
HIGH DISCHARGE PIPE TEMPERATURE
E6 FAULTY COMPRESSOR START
H8
FAULTY SUCTION AIR
H9
TEMPERATURE SENSOR
OUTDOOR FAULTY DISCHARGE PIPE
J3
UNIT TEMPERATURE SENSOR
J6 FAULTY HEAT EXCHANGER SENSOR
J9 FAULTY GAS PIPE TEMPERATURE SENSOR
HIGH TEMPERERATURE AT
L4
INVERTER CIRCUIT HEATSINK
FAULTY INVERTER CIRCUIT HEATSINK
P4
TEMPERATURE SENSOR
Instruction
MEANING
CT ABNORMALITY
19
3P062625-4B
(R1941)
59