Daikin FDKS60C7VMB [26/28] Fault diagnosis

FAULT DIAGNOSIS BY REMOTE CONTROLLER

In the ARC433 series, the temperature display sections on the main unit indicate corresponding codes.

1. When the TIMER CANCEL button is held down for 5 seconds, a

“”

indication flashes on the

temperature display section.

2. Press the TIMER CANCEL button repeatedly until a continuous beep is produced.

• The code indication changes in the sequence shown below, and notifies with along beep.

NOTE

Fault diagnosis.

CODE MEANING

SYSTEM

00 NORMAL

U0 REFRIGERANT SHORTAGE

U2 DROP VOLTAGE OR MAIN CIRCUIT OVERVOLTAGE

U4 FAILURE OF TRANSMISSION (BETWEEN INDOOR UNIT AND OUTDOOR UNIT)

INDOOR 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

OUTDOOR

UNIT

EA COOLING-HEATING SWITCHING ERROR

E5 OL STARTED

E6 FAULTY COMPRESSOR START UP

E7 DC FAN MOTOR FAULT

E8 OPERATION HALT DUE TO DETECTION OF INPUT OVER CURRENT

F3 HIGH TEMPERATURE DISCHARGE PIPE CONTROL

F6 HIGH PRESSURE CONTROL (IN COOLING)

H6 OPERATION HALT DUE TO FAULTY POSITION DETECTION SENSOR

H8 CT ABNORMALITY

H9 FAULTY SUCTION AIR TEMPERATURE SENSOR

J3 FAULTY DISCHARGE PIPE TEMPERATURE SENSOR

J6 FAULTY HEAT EXCHANGER TEMPERATURE SENSOR

L4 HIGH TEMPERATURE AT INVERTER CIRCUIT HEATSINK

L5 OUTPUT OVERCURRENT

P4 FAULTY INVERTER CIRCUIT HEATSINK TEMPERATURE SENSOR

1. A short beep and two consecutive beeps indicate non-corresponding codes.

2. To cancel the code display, hold the TIMER CANCEL button down for 5 seconds. The code display

also cancel itself if the button is not pressed for 1 minute.

TIMER CANCEL button

It cancels the timer setting.