Gree XK86 Owner's Manual page 65

Wired Controller (XK86 and XE76-33/H)
Error
Code
Master indoor unit is successfully
UC
set
Emergency Operation DIP switch
UL setting of the compressor is
wrong
Refrigerant Charging is
UE
ineffective
Indoor Unit Identification Error of
UF
Mode Exchanger
UJ PV module F0 protection
Protection shutdown error of
UP
thermal storage module
Electronic expansion valve leak
UU
error of thermal storage module
Protection without shutdown
Ub
error of thermal storage module
Grid-connection driver board
Ud
error
Communication error between
Un grid-connection driver board and
master controller
PV module overheating
Uy
protection
Content Error Code
CL Rated capacity is too low
Communication Failure Between
CE
Mode Exchanger and Indoor Unit
CF Error of Multiple Master Indoor Unit
CJ System addresses is incompatible
Error of Multiple Master Wired
CP
Controller
Communication Error between
CU
Indoor Unit and Remote Receiver
Cb Outflow of Units IP Address
Communication Failure Between
Cd
Mode Exchanger and Outdoor Unit
Indoor and Outdoor Network Error
Cn
of Mode Exchanger
Communication Error of No Master
Cy
in Mode Exchanger
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Content