Table of Contents
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SiBE28-804
1. How to Handle Request for Maintenance ...........................................123
2. Troubleshooting Based on Equipment Condition................................124
3. Procedure of Self-Diagnosis by Remote Controller ............................144
4. Troubleshooting by LED Indications ...................................................152
Troubleshooting
Troubleshooting
1.1 General Troubleshooting Flowchart .....................................................123
2.1 Overview of General Problems ............................................................124
2.2 Equipment does not Operate ...............................................................125
2.3 Indoor Fan Operates, but Compressor does not..................................127
2.4 Cooling/Heating Operation Starts but Stops Immediately ....................129
2.5 After Unit Shuts Down, It cannot be Restarted for a While ..................131
2.6 Equipment Operates but does not Provide Cooling .............................133
2.7 Equipment Operates but does not Provide Heating .............................135
2.8 Equipment Discharges White Mist .......................................................137
2.9 Equipment Produces Loud Noise or Shakes........................................138
2.10 Equipment Discharges Dust.................................................................140
2.12 Swing Flap does not Operate...............................................................142
3.1 The Inspection/Test Button ..................................................................144
3.2 Fault-diagnosis by Wired Remote Controller........................................145
3.3 Fault-diagnosis by Wireless Remote Controller ...................................146
3.4 Remote Controller Display Malfunction Code and Contents ................150
4.1 Troubleshooting by LED on the Indoor Units .......................................152
4.2 Troubleshooting by LED on Outdoor Unit PC Board............................153
5.1 Indoor Malfunctions ..............................................................................154
5.2 Outdoor Malfunctions ...........................................................................155
5.3 System Malfunctions ............................................................................156
5.4 Overview of the Outdoor Safety Devices .............................................157
5.5 Overview of the Indoor Safety Devices ................................................158
5.6 "A1" Malfunctioning Indoor PC Board ....................................................159
5.7 "A3" Malfunction of Drain Water Level System .....................................160
5.8 "A6" Indoor Unit Fan Motor Lock ...........................................................162
5.9 "A7" Swing Flap Motor Malfunction / Lock.............................................164
5.10 "A8" Abnormal Power Supply Voltage...................................................166
5.11 "AF" Malfunctioning Drain System .........................................................167
5.12 "AJ" Malfunctioning Capacity Setting ....................................................169
fan PC board) .......................................................................................171
5.14 "C4", "C9" Thermistor Abnormality ..........................................................173
(between indoor unit PC board and fan PC board) ..............................175
5.16 "CJ" Malfunctioning Remote Controller Air Thermistor..........................176
5.17 "CC" Humidity Sensor System Malfunction ............................................177
5.18 "E1" Failure of Outdoor Unit PC Board...................................................178
5.19 "E3" Abnormal High Pressure (Detected by the HPS)...........................179
Part 6
121
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Table of Contents
Troubleshooting
