Daikin RZQ125B7W1B [205/326] Error codes outdoor units

ESIE05-03 Error Codes: Outdoor Units

Part 3 – Troubleshooting 3–57

Part 3

3 Error Codes: Outdoor Units

3.1 What Is in This Chapter?

Introduction In the first stage of the troubleshooting sequence, it is important to correctly interpret the error code on

the remote controller display. The error code helps you to find the cause of the problem.

Overview This chapter contains the following topics:

Topic See page

3.2–Failure of Outdoor Unit PC Board (E1) 3–58

3.3–Abnormal High Pressure (Detected by the HPS) (E3) 3–59

3.4–Actuation of Low Pressure Sensor: RZQ71B8V3B (E4) 3–61

3.5–Actuation of Low Pressure Switch: RZQ100~140 (E4) 3–63

3.6–Compressor Motor Lock (E5) 3–65

3.7–Malfunction of Outdoor Unit Fan Motor (E7) 3–67

3.8–Malfunction of Electronic Expansion Valve (E9) 3–69

3.9–Malfunctioning in Discharge Pipe Temperature (F3) 3–71

3.10–Malfunctioning HPS System (H3) 3–73

3.11–Abnormal Low Pressure Switch (H4) 3–74

3.12–Malfunction of Thermistor System (H9, J3, J5, J6) 3–76

3.13–Malfunction of Suction Pipe Pressure Sensor (JC) 3–77

3.14–Radiation Fin Temperature Increased (L4) 3–79

3.15–DC Output Overcurrent (Instantaneous) (L5) 3–80

3.16–Electronic Thermal (Time Lag) (L8) 3–82

3.17–Stall Prevention (Time Lag) (L9) 3–84

3.18–Malfunction of Transmission system (Between Control PCB and Inverter

PCB) (LC)

3–86

3.19–Open Phase or Power Supply Voltage Imbalance (P1) 3–88

3.20–Malfunction of Radiator Fin Temperature Thermistor (P4) 3–90

3.21–Failure of Capacity Setting (PJ) 3–91

3.22–Gas Shortage (Malfunction) (U0) 3–92

3.23–Abnormal Power Supply Voltage (U2) 3–93

ESIE05-03.book Page 57 Wednesday, April 6, 2005 4:09 PM