Lennox VRF VEWCL1E - Code List for Debugging

Wired Controller VEWCL1E
70
10.3 Code List for Debugging
Code Content Code Content
U2
Outdoor Unit Capacity Code/Jumper
Cap Setting Error
CC No master control unit error
U3
Phase Sequence Protection of Power
Supply
CE
Communication error between mode
switch and IDU
U4 Protection of Lack of Refrigerant CF Multiple master control units error
U5
Wrong Address of Compressor Drive
Board
Cb IP address allocation overflow
U6 Valve Abnormal Alarm C0
Communication error between IDU
and ODU, IDU and wired controller
U8 Indoor Unit Tube Malfunction C1
Communication error of expansion
board
U9 Outdoor Unit Tube Malfunction C2
Communication error between master
controller nd inverter compressor
driver
UC Master indoor unit is successfully set. C3
Communication error between master
controller and inverter fan driver
UE Refrigerant Charging is ineffective. C4 Error of Lack of Indoor Unit
UA
Overvoltage protection of DC bus bar
in power grid side
C5
Alarm of Indoor Unit Project Number
Collision