Midea V8 VRF Series User Manual

V8 VRF Indoor Units
38
Midea
V8
Series VRF Indoor Units
5 Errors and operation code
5.1 Error Code Table
Table 5.1: Error code
Error
code
Content
Error
code
Content
A01
Emergency stop
C52
Abnormal communication between the IDU and Wi-Fi Kit
A11
R32 refrigerant leaks, requiring shutdown immediately
C61
Abnormal communication between the IDU main control
board and display board
A51
ODU fault
C71
Abnormal communication between the AHU Kit slave unit
and master unit
A71
The fault of the linked FAPU is transmitted to the
master IDU (series setting)
C72
Number of AHU Kits is not the same as the set number
A72
The fault of the linked humidifying IDU is transmitted
to the master IDU
C73
Abnormal communication between the linked humidifying
IDU and master IDU
A73
The fault of the linked FAPU is transmitted to the
master IDU (non-series setting)
C74
Abnormal communication between the linked FAPU and
master IDU (series setting)
A74
The fault of the AHU Kit slave unit is sent to the master
unit
C75
Abnormal communication between the linked FAPU and
master IDU (non-series setting)
A81
Self-check fault
C76
Abnormal communication between the main wired
controller and secondary wired controller
A82
MS (refrigerant flow direction switching device) fault
C77
Abnormal communication between the IDU main control
board and 1# function expansion board
A91
Mode conflict (V6 communication protocol adopted)
C78
Abnormal communication between the IDU main control
board and 2# function expansion board
b11
1# EXV coil fault
C79
Abnormal communication between the IDU main control
board and adapter board
b12
1# EXV body fault
d16
Air inlet temperature of the IDU is too low in heating
mode
b13
2# EXV coil fault
d17
Air inlet temperature of the IDU is too high in cooling
mode
b14
2# EXV body fault
d81
Alarm for exceeding temperature and humidity range
b34
Stall protection on 1# water pump
dE1
Sensor control board fault
b35
Stall protection on 2# water pump
dE2
PM2.5 sensor fault
b36
Water level switch alarm
dE3
CO2 sensor fault
b71
Reheating electric heater fault
dE4
Formaldehyde sensor fault
b72
Preprocessing electric heater fault
dE5
INTELLECTUAL EYE sensor fault
b81
Humidifier fault
E21
T0 (fresh inlet air temperature sensor) short-circuits or
cuts off
C11
Duplicate IDU address code
E22
The upper dry bulb temperature sensor short-circuits or
cuts off
C21
Abnormal communication between the IDU and ODU
E23
The lower dry bulb temperature sensor short-circuits or
cuts off
C41
Abnormal communication between the IDU main
control board and fan drive board
E24
T1 (IDU return air temperature sensor) short-circuits or
cuts off
C51
Abnormal communication between the IDU and wired
controller
E31
The built-in room temperature sensor of the wired
controller short-circuits or cuts off

Midea V8 VRF Series Specifications

General

Brand	Midea
Model	V8 VRF Series
Category	Air Conditioner
Language	English