Haier AV08IMVEVA Installation Manual page 40

Failure code
Digital tube
indication
Failure code definition
on master
unit
Module rectifier side
108 software transient
overcurrent
Module rectifier side
109 current detection circuit
anomaly
Module hardware
110
overcurrent
111 Compressor out of step
High temperature of
112
module radiator
113 Module overload
Module DC bus DC
114
undervoltage
Module DC bus DC
115
overvoltage
Communication error
116 between module and
control board
Modular software
117
overcurrent
118 Module boot failure
Module current detection
119
circuit error
Module power supply
120
error
Module control board
121
power supply abnormal
Module radiator
122 temperature sensor
abnormal
Module rectifier side
123 hardware transient
overcurrent
Three phase power
124
supply failure
Compressor frequency
125-0/1
mismatch
Fan speed mismatch
125-4/5
(locked rotor)
127 MCU reset fault
-
-
-
In the process of starting or running, the rotor position can not
be detected for 6 times in a row, and the INV control board is
automatically restored after stopping 5S
The temperature more than 94℃ fault alarm.
Automatic recovery of INV control board when temperature is 94℃
-
When the supply voltage is less than DC420V, the fault alarm.
When the voltage is greater than DC420V, the INV control board
is automatically restored
When the supply voltage is greater than DC642V, the fault alarm.
When the voltage is less than DC642V, the INV control board is
automatically restored.
For 30 seconds, the communication signal is not detected, and the
INV control board is recovered immediately after detection
-
Compressor 5 consecutive start failure
Abnormality of current detection sensor, no connection or
connection error
Inverter controller power supply instantaneous interrupt
Inverter controller board power supply instantaneous interrupt
Temperature sensor resistance is abnormal or not connected
-
-
(the current frequency is greater than or equal to INV or +3Hz
target frequency (frequency) target actual frequency >0 & & =0) for
5 minutes
20rpm run below the 30s, or the target value of 70% to run for
up to 2 minutes after the shutdown, automatic recovery after 2
minutes of 50 seconds, one hour and four fault confirmation.
If the host detects sub machine MCU reset, and the machine is in
operation, the host MCU reset the fault, the whole system down;
if in the heating mode, then restart the 4WV power, the system re
4WV reversing operation. Four fault confirmation for one hour
38
Failure description Remarks
-1: compressor
module 1;
-2: compressor
module 2;
-4: fan module
1;
-5: fan module
2;
Four fault
confirmation
for one hour，
Once
confirmation
un-resumable
resumable
Once
confirmation
un-resumable
Once
confirmation
un-resumable