Daikin FUQ71BUV1B [7/381] Error codes

ESIEN05-04

Table of Contents v

Part 3

Troubleshooting

1 Troubleshooting

1.1 What Is in This Chapter? ........................................................................ 3–3

1.2 General Troubleshooting Flowchart........................................................ 3–4

1.3 Overview of General Problems ............................................................... 3–5

1.4 Procedure of Self-Diagnosis by Remote Controller ................................ 3–20

1.5 Fault-diagnosis by Wired Remote Controller .......................................... 3–21

1.6 Fault-diagnosis by Wireless Remote Controller...................................... 3–22

1.7 Overview of Error Codes......................................................................... 3–26

1.8 Troubleshooting by LED Indications on the Indoor Unit.......................... 3–27

1.9 Troubleshooting by Remote Controller Display / LED Display................ 3–28

1.10 Overview of the Indoor Safety Devices .................................................. 3–30

2 Error Codes

2.1 What Is in This Chapter? ........................................................................ 3–31

2.2 Malfunctioning Indoor PCB ..............................................................(A1) 3–32

2.3 Malfunction of Drain Water Level System ........................................(A3) 3–33

2.4 Malfunctioning Drain System .......................................................... (AF) 3–35

2.5 Indoor Unit Fan Motor Lock .............................................................(A6) 3–36

2.6 Malfunctioning Capacity Setting .......................................................(AJ) 3–38

2.7 Thermistor Abnormality ...................................................... (C4, C5, C9) 3–40

2.8 Malfunctioning Remote Controller Air Thermistor............................ (CJ) 3–42

2.9 Malfunctioning of Moisture Sensor System..................................... (CC) 3–43

3 Error Codes: System Malfunctions

3.1 What Is in This Chapter? ........................................................................ 3–45

3.2 Malfunction of Transmission between Indoor and

Outdoor Unit (U4 or UF).......................................................................... 3–46

3.3 Malfunction of Transmission between Indoor Unit and

Remote Controller (U5) .......................................................................... 3–48

3.4 Malfunction of Transmission between MAIN Remote Controller

and SUB Remote Controller (U8) 3–49

3.5 Malfunctioning Field Setting Switch ................................................(UA) 3–50

3.6 Centralized Address Setting Error ..................................................(UC) 3–52