Haier AV08IMVEVA - Failure Code Definitions

38
Failure code
Digital tube
indication
on master
unit
Failure code denition Failure description Remarks
108
Module rectier side
software transient
overcurrent
-
-1: compressor
module 1;
-2: compressor
module 2;
-4: fan module
1;
-5: fan module
2;
Four fault
conrmation
for one hour
，
Once
conrmation
un-resumable
109
Module rectier side
current detection circuit
anomaly
-
110
Module hardware
overcurrent
-
111 Compressor out of step
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
112
High temperature of
module radiator
The temperature more than 94
℃
fault alarm.
Automatic recovery of INV control board when temperature is 94
℃
113 Module overload -
114
Module DC bus DC
undervoltage
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
115
Module DC bus DC
overvoltage
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.
116
Communication error
between module and
control board
For 30 seconds, the communication signal is not detected, and the
INV control board is recovered immediately after detection
117
Modular software
overcurrent
-
118 Module boot failure Compressor 5 consecutive start failure
119
Module current detection
circuit error
Abnormality of current detection sensor, no connection or
connection error
120
Module power supply
error
Inverter controller power supply instantaneous interrupt
121
Module control board
power supply abnormal
Inverter controller board power supply instantaneous interrupt
122
Module radiator
temperature sensor
abnormal
Temperature sensor resistance is abnormal or not connected
123
Module rectier side
hardware transient
overcurrent
-
124
Three phase power
supply failure
-
125-0/1
Compressor frequency
mismatch
(the current frequency is greater than or equal to INV or +3Hz
target frequency (frequency) target actual frequency >0 & & =0) for
5 minutes
resumable
125-4/5
Fan speed mismatch
(locked rotor)
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 conrmation.
Once
conrmation
un-resumable
127 MCU reset fault
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 conrmation for one hour
Once
conrmation
un-resumable