Wired Controller XE70-33/H
69
Error
Content Error Code Content
UF
Indoor Unit Identification Error of
Mode Exchanger
CJ System addresses is incompatible
UJ PV module F0 protection CP
Error of Multiple Master Wired
Controller
UP
Protection shutdown error of
thermal storage module
CU
Communication Error between
Indoor Unit and Remote Receiver
UU
Electronic expansion valve leak
error of thermal storage module
Cb Outflow of Units IP Address
Ub
Protection without shutdown
error of thermal storage module
Cd
Communication Failure Between
Mode Exchanger and Outdoor Unit
Ud
Grid-connection driver board
error
Cn
Indoor and Outdoor Network Error
of Mode Exchanger
Un
Communication error between
grid-connection driver board and
Cy
Communication Error of No Master
in Mode Exchanger
Uy
PV module overheating
protection
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10.4 Code List for Status
Error Code Content Error Code Content
A0 Unit is waiting for debugging Ay Shielding status
A1
Check the compressor operation
parameters
n3 Compulsory defrosting
A2 After-sales Refrigerant Reclaim q5
Setting of ordinary units and high
sensible heat units
A3 Defrosting q7 Select degree Celsius or Fahrenheit
A4 Oil return q8
Discharge low temperature
protection revision value b
A5 Online Testing q9 Setting of defrosting mode
A8 Vacuum-pumping Mode qL Setting of static pressure