Service manual

ESIE03–01
Table of Contents v
3
4
5
1
2 Error Codes: Indoor Units
2.1 What Is in This Chapter? ........................................................................ 3–25
2.2 Malfunctioning Indoor PCB ..............................................................(A1) 3–26
2.3 Malfunctioning Drain Water Level System .......................................(A3) 3–27
2.4 Indoor Unit Fan Motor Lock .............................................................(A6) 3–29
2.5 Malfunctioning Drain System .......................................................... (AF) 3–31
2.6 Malfunctioning Capacity Setting .......................................................(AJ) 3–32
2.7 Thermistor Abnormality ..........................................................(C4 or C9) 3–34
2.8 Malfunctioning Remote Controller Air Thermistor............................ (CJ) 3–36
3 Error Codes: Outdoor Units
3.1 What Is in This Chapter? ........................................................................ 3–37
3.2 Activation of Safety Device .............................................................(EO) 3–38
3.3 Failure of Outdoor Unit PC Board.................................................... (E1) 3–43
3.4 Abnormal High Pressure (Detected by the HPS) .............................(E3) 3–44
3.5 Abnormal Low Pressure (Detected by the LPS) ..............................(E4) 3–46
3.6 Compressor Overcurrent .................................................................(E6) 3–48
3.7 Malfunctioning Electronic Expansion Valve .....................................(E9) 3–50
3.8 Malfunctioning in Discharge Pipe Temperature ...............................(F3) 3–52
3.9 Malfunctioning HPS ........................................................................ (H3) 3–54
3.10 Malfunctioning Outdoor Thermistor System .................................... (H9) 3–55
3.11 Malfunctioning Discharge Pipe Thermistor System ......................... (J3) 3–56
3.12 Malfunctioning Heat Exchanger Thermistor System ........................ (J6) 3–57
3.13 Abnormal Heat Exchanging Temperature ........................................(F6) 3–58
3.14 Malfunction of Current Sensor System ............................................ (J2) 3–59
3.15 Failure of Capacity Setting ...............................................................(PJ) 3–60
4 Error Codes: System Malfunctions
4.1 What Is in This Chapter? ........................................................................ 3–61
4.2 Gas Shortage Detection ..................................................................(UO) 3–62
4.3 Reverse Phase ............................................................................... (U1) 3–63
4.4 Transmission Error between Indoor and Outdoor Unit ......... (U4 or UF) 3–65
4.5 Transmission Error between Indoor Unit and Remote Controller ... (U5) 3–67
4.6 Transmission Error between MAIN Remote Controller
and SUB Remote Controller (U8) 3–68
4.7 Malfunctioning Field Setting Switch ................................................(UA) 3–69