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Appendix
Error description Error code
1. COND mid sensor is detached E241
2. Refrigerant leakage (2nd detection) E554
3. Abnormally high temperature on Cond (2nd detection) E450
4. Low pressure s/w (2nd detection) E451
5. Abnormally high temperature on discharged air on outdoor unit (2nd detection) E416
6. Indoor unit shut-down due to unconfirmed error on outdoor unit E559
7. Error due to reverse phase detection E425
8. Comp stop due to freeze detection (6th detection) E403
9. High pressure sensor is detached E301
10. Low pressure sensor is detached E306
11. Outdoor unit compression ratio error E428
12. Outdoor sump down_1 protection control E413
13. Compressor down due to low pressure sensor protection control_1 E410
14. Simultaneous opening of cooling/heating MCU SOL valve (1st detection) E180
15. Simultaneous opening of cooling/heating MCU SOL valve (2nd detection) E181
Other outdoor unit self-diagnosis errors that are not on the above list
External contact input error E665
EEPROM error E162
EEPROM option error E163
Error due to incompatibility with an indoor unit that special consumption tax is applied. E164
• If you turn off the air conditioner when the error display is on, all the displays are turned off.
• If you re-operate the air conditioner, it will operate normally at first, then detect and display an error again.
• When E108 error occurs, change the address and reset the system.
e.g. When the 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.
• The E665 error occurs when the 02 series installation option (SEG8) is set to "External drain pump use" and the external
contact input (MIM-B14) is open.
DB68-08953A-00_IM_DVM QMD_EU_EN_.indd 33 2020-02-10 오후 4:23:12
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