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14.Troubleshooting
14.1Trouble guide
When the air conditioner failure occurs, the fault code will displays on control board , wire
remote controller or display panel.
How to check fault codes
Indoor Unit
(1)Fault codes indicated by wire remote controller (see figure below)
MOEDL:YXC-A01U(E)
MODEL:YXC-C01U/YXE-C01U/YXC-D01U/YXE-D01U(E)
DC-� INVERTER AIR CONDITIONER TECHNICAL&SERVICE MANUAL
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FIG.2 FAULT CODE DISPLAY ON WIRE REMOT CONTROLLER
When display"FE" ,shows that the wire controller
can't receive the signals of indoor unit control
board ,please check communication wires.
When failure occurs, this lamp light ON.
This number shows FAULT CODE.
121
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