Daikin Super Multi NX 3MXS-G Series Engineering Data page 433

CDXS, FDXS Series
Troubleshooting
SYSTEM
INDOOR
UNIT
OUTDOOR
UNIT
NOTE
• A short beep and two consecutive beeps indicate non-corresponding codes.
• To cancel the code display, hold
27
428
Fault diagnosis by remote controller
• The remote controller can receive a corresponding error code from the indoor unit.
1.
When
" " indication blinks on the temperature
display section.
2.
Press
beep is produced.
• The code indication changes as displayed in the following table, and notifi es with a
long beep.
CODE
00 NORMAL
UA INDOOR-OUTDOOR UNIT COMBINATION FAULT
U0 REFRIGERANT SHORTAGE
U2 DROP VOLTAGE OR MAIN CIRCUIT OVERVOLTAGE
U4 FAILURE OF TRANSMISSION (BETWEEN INDOOR UNIT AND OUTDOOR UNIT)
A1 INDOOR PCB DEFECTIVENESS
A5 HIGH PRESSURE CONTROL OR FREEZE-UP PROTECTOR
A6 FAN MOTOR FAULT
C4 FAULTY HEAT EXCHANGER TEMPERATURE SENSOR
C9 FAULTY SUCTION AIR TEMPERATURE SENSOR
EA COOLING-HEATING SWITCHING ERROR
E1 CIRCUIT BOARD FAULT
E5 OL STARTED
E6 FAULTY COMPRESSOR START UP
E7 DC FAN MOTOR FAULT
E8 OVERCURRENT INPUT
F3 HIGH TEMPERATURE DISCHARGE PIPE CONTROL
F6 HIGH PRESSURE CONTROL (IN COOLING)
H0 SENSOR FAULT
H6 OPERATION HALT DUE TO FAULTY POSITION DETECTION SENSOR
H8 DC CURRENT SENSOR FAULT
H9 FAULTY SUCTION AIR TEMPERATURE SENSOR
J3 FAULTY DISCHARGE PIPE TEMPERATURE SENSOR
J6 FAULTY HEAT EXCHANGER TEMPERATURE SENSOR
L3 ELECTRICAL PARTS HEAT FAULT
L4 HIGH TEMPERATURE AT INVERTER CIRCUIT HEATSINK
L5 OUTPUT OVERCURRENT
P4 FAULTY INVERTER CIRCUIT HEATSINK TEMPERATURE SENSOR
for 5 seconds. The code display also cancel itself if the button is not pressed for 1 minute.
is held down for 5 seconds, a
repeatedly until a continuous
MEANING
EDUS121131
Operation Manual