2-23. E: 5U. Indoor unit error
Indicator Indoor unit
Operation indicator 5 time flash
Timer indicator 15 time flash
Economy indicator Continuous flash
Error code E: 5U
Check point. Check following error code.
E: 11. Serial communication error (Serial reverse transfer error) (Outdoor unit)
E: 11. Serial communication error (Serial forward transfer error) (Indoor unit)
E: 12. Wired remote controller communication error (Indoor unit)
E: 18. External communication error (Indoor unit)
E: 18. External communication error between indoor unit and wireless LAN adapter
E: 18. Communication error
E: 18. Wireless LAN adapter non-energized
E: 22. Indoor unit capacity error (Indoor unit)
E: 23. Combination error (Outdoor unit)
E: 26. Address setting error in wired remote controller (Indoor unit)
E: 29. Connected unit number error (Indoor unit)
E: 32. Indoor unit main PCB error (Indoor unit)
E: 33. Indoor unit motor electricity consumption detection error (Indoor unit)
E: 35. MANUAL AUTO button error (Indoor unit)
E: 3A. Indoor unit communication circuit (wired remote controller) error
E: 41. Room temperature sensor error (Indoor unit)
E: 42. Indoor unit heat exchanger sensor error (Indoor unit)
E: 51. Indoor unit fan motor error (Indoor unit)
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End
2-23. E: 5U. Indoor unit error - (03-49) - 2. Troubleshooting with error code
TROUBLESHOOTING
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