G Fault Diagnosis - Daikin FT18JV1B Operation Manual

Trouble Shooting
G G G G G 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
CODE
E5
E6
H8
H9
OUTDOOR
J3
UNIT
J6
J9
L4
P4
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
MEANING
INTERNAL THERMOSTAT WORKED OR
HIGH DISCHARGE PIPE TEMPERATURE
FAULTY COMPRESSOR START
CT ABNORMALITY
FAULTY SUCTION AIR
TEMPERATURE SENSOR
FAULTY DISCHARGE PIPE
TEMPERATURE SENSOR
FAULTY HEAT EXCHANGER SENSOR
FAULTY GAS PIPE TEMPERATURE SENSOR
HIGH TEMPERERATURE AT
INVERTER CIRCUIT HEATSINK
FAULTY INVERTER CIRCUIT HEATSINK
TEMPERATURE SENSOR
17