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English
Appendix
Troubleshooting
Detection of errors
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If an error occurs during the operation, an LED flickers and the operation is stopped except the LED.
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If you re-operate the air conditioner, it operates normally at first, then detect an error again.
LED Display
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If you turn off the air conditioner when the LED is flickering, the LED is also turned off.
•
If you re-operate the air conditioner, it operates normally at first, then detect an error again.
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When E108 error occurs, change the address and reset the system.Ex.) When address of the indoor unit #1 and #2
are set as 5, address of the indoor unit #1 will become 5 and indoor unit #2 will display E108, A002.
Abnormal condition
Error
code
LED Display
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Error on indoor temperature sensor (Short or Open)
E121
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Error on Eva-in sensor (Short or Open)
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Error on Eva-out sensor (Short or Open)
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Discharge sensor error (Short or Open)
E122
E123
E126
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Indoor fan error
E154
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Error on outdoor temperature sensor (Short or Open)
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Error on cond sensor
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Error on discharge sensor
Other outdoor unit sensor error that is not on the above list
E221
E237
E251
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When there is no communication between the
indoor∙outdoor units for 2 minutes
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Communication error received from the outdoor unit
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3 miniute tracking error on outdoor unit
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Communication error after tracking due to unmatching
number of installed units
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Error due to repeated communication address
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Communication address not confirmed
Other outdoor unit communication error that is not on the
above list
E101
E102
E202
E201
E108
E109
Self diagnosis error display
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Error due to opened EEV (2nd detection)
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Error due to closed EEV (2nd detection)
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Eva in sensor is detached
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Eva out sensor is detached
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Thermal fuse error (Open)
E151
E152
E128
E129
E198
Appendix
Summary of Contents for AE071MNMPEH
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