Daikin FTXS71GV1B User Manual download pdf (Page 42)

English

Fault diagnosis by remote controller

In the ARC452A series, the temperature display sections on the

main unit indicate corresponding codes.

1. When is held down for

5 seconds, a

“”

indication flashes on the

temperature display section.

2. Press repeatedly until a continuous

beep is produced.

• The code indication changes as shown below, and notifies

with a long beep.

NOTE

Fault diagnosis.

CODE MEANING

SYSTEM

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)

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

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

1. A short beep and 2 consecutive beeps indicate non-corresponding codes.

2. To cancel the code display, hold the down for 5 seconds. The code display also

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

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Daikin FTXS71GV1B User Manual Page 42

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