Samsung AVXCSH022EE Service Manual page 145

Troubleshooting
■ Error display order
Error mode Cause
Dislocation of indoor temp. sensor connector
121 Wire breaking of indoor temp. sensor
Defective indoor temp. sensor
Dislocation of In-sensor connector in IU's heat exchanger
122 In-sensor wire breaking in IU's heat exchanger
Defective In-sensor in IU's heat exchanger
Dislocation of Out-sensor connector in IU's heat exchanger
123 Out-sensor wire breaking in IU's heat exchanger
Defective Out-sensor in IU's heat exchanger
128 IU's heat exchanger in sensor dislocation error
129 IUs' heat exchanger out sensor dislocation error
130 Simultaneous IU's heat exchanger in.out sensor dislocation error
135 Indoor clean fan rotational frequency feedback error
nd
151 The 2 opening error of indoor electrically operated valve
nd
152 The 2 closing error of indoor electrically operated valve
153 Indoor floating sensor error
154 Indoor fan error
161 Mixed operation error
Defective EEPROM part
162
Defective EEPROM circuit
Samsung Electronics
Measures to take
exchanger
exchanger
unit or other Indoor unit
unit or other Indoor unit
relevant Indoor unit
Product's operation condition during error(Main parts status)
Error occurred
Frequency Outdoor unit status Other indoor units
indoor unit.
1 Normal operation Operation off Normal operation
1 Normal operation Operation off Normal operation
1 Normal operation Operation off Normal operation
1 Normal operation Operation off Normal operation
1 Normal operation Operation off Normal operation
1 Normal operation Operation off Normal operation
Normal in other
1 Normal operation Normal operation
Functions
2 Operation off Operation off Normal operation
2 Operation off Operation off Normal operation
1 Operation off Operation off Normal operation
1 Normal operation Operation off Normal operation
1 Normal operation Operation off Normal operation
1 Normal operation Operation off Normal operation
Troubleshooting
Diagnosis
method
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