Service manual

ESIE03–01 Troubleshooting

Part 3 – Troubleshooting 3–3

Part 3

1 Troubleshooting

1.1 What Is in This Chapter?

Introduction When a problem occurs, you have to check all possible malfunctions. This chapter gives a general idea

of where to look for malfunctions.

Not all repair procedures are described. Some procedures are considered common practice.

Overview This chapter contains the following topics:

Topic See page

1.2–Overview of General Problems 3–4

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

1.4–Procedure of Self-Diagnosis by Remote Controller 3–7

1.5–Checking with the Wireless Remote Controller Display 3–8

1.6–Self-Diagnosis by Wired Remote Controller 3–12

1.7–Remote Controller Display Malfunction Code and Contens 3–13

1.8–Troubleshooting with the Indoor Unit LEDs and the Remote Controller 3–15

1.9–Troubleshooting with the Remote Controller: Outdoor Malfunctions 3–16

1.10–Troubleshooting with the Remote Controller: System Malfunctions 3–17

1.11–Overview of the Indoor Safety Devices 3–18

1.12–Overview of the Outdoor Safety Devices 3–19

1.13–Outdoor Safety Device: Thermal Protector Fan Motor 3–20

1.14–Outdoor Safety Device: Reverse Phase Protector 3–21

1.15–Outdoor Safety Device: High-Pressure Switch 3–22

1.16–Outdoor Safety Device: Low-Pressure Switch 3–23