Daikin FUYP125BV1 [8/397] Error codes indoor units

ESiEN02–01A

vi Table of Contents

Part 3

Troubleshooting

1 Troubleshooting

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

1.2 Overview of General Problems................................................................ 3–4

1.3 Emergency Operation and Checking with the Wired Remote Control ..... 3–6

1.4 Checking with the Infrared Remote Control Display ................................ 3–7

1.5 Troubleshooting with the Indoor Unit LEDs and the Remote Control ...... 3–11

1.6 Troubleshooting with the Outdoor Unit LEDs and the Remote Control:

Outdoor Malfunctions............................................................................... 3–12

1.7 Troubleshooting with the Outdoor Unit LEDs and the Remote Control:

System Malfunctions................................................................................ 3–13

1.8 Overview of the Indoor Safety Devices.................................................... 3–14

1.9 Overview of the Outdoor Safety Devices................................................. 3–15

1.10 Outdoor Safety Device: Thermal Protector Fan Motor............................. 3–16

1.11 Outdoor Safety Device: Overcurrent Relay Compressor......................... 3–17

1.12 Outdoor Safety Device: Reverse Phase Protector................................... 3–18

1.13 Outdoor Safety Device: High-Pressure Switch ........................................ 3–19

1.14 Outdoor Safety Device: Low-Pressure Switch......................................... 3–20

2 Error Codes: Indoor Units

2.1 What Is in This Chapter? ......................................................................... 3–21

2.2 Malfunctioning Indoor PCB ............................................................... (A1) 3–22

2.3 Malfunctioning Drain Water Level System ....................................... (A3) 3–23

2.4 Indoor Unit Fan Motor Lock ............................................................. (A6) 3–25

2.5 Malfunctioning Drain System ........................................................... (AF) 3–27

2.6 Malfunctioning Capacity Setting ...................................................... (AJ) 3–28

2.7 Thermistor Abnormality ........................................................... (C4 or C9) 3–30

2.8 Malfunctioning Remote Control Air Thermistor ................................ (CJ) 3–32

3 Error Codes: Outdoor Units

3.1 What Is in This Chapter? ......................................................................... 3–33

3.2 Activation of Safety Device .............................................................. (E0) 3–34

3.3 Abnormal High Pressure (Detected by the HPS) ..............................(E3) 3–39

3.4 Abnormal Low Pressure (Detected by the LPS) .............................. (E4) 3–41

3.5 Malfunctioning Electronic Expansion Valve ..................................... (E9) 3–43

3.6 Malfunctioning in Discharge Pipe Temperature ................................(F3) 3–45

3.7 Malfunctioning HPS ......................................................................... (H3) 3–47

3.8 Malfunctioning Outdoor Thermistor System ..................................... (H9) 3–48

3.9 Malfunctioning Discharge Pipe Thermistor System ......................... (J3) 3–50

3.10 Malfunctioning Heat Exchanger Thermistor System ........................ (J6) 3–51