Code List For Debugging - Lennox VRF VEWCL1E Instruction Manual

Wired Controller VEWCL1E

10.3 Code List for Debugging

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