Hisense AMW2-18U4RJC Technical & Service Manual page 129

15. TROUBLESHOOTING
Fault
Fault description
code
1 Inverter DC voltage overload fault
2 Inverter DC low voltage fault
3 Inverter AC current overload fault
4 Out-of-step detection
Loss phase detection fault (speed
5
pulsation)
Loss phase detection fault (current
6
imbalance)
7 Inverter IPM fault (edge)
8 Inverter IPM fault (level)
9 PFC fault (edge)
10 PFC fault (level)
11 PFC power detection of failure
PFC overload current detection of
12
failure.
13 DC voltage detected abnormal .
PFC LOW voltage detected
14
failure.
AD offset abnormal detected
15
failure.
16 Inverter PWM logic set fault.
17 Inverter PWM initialization failure
18 PFC_PWM logic set fault.
19 PFC_PWM initialization fault.
20 Temperature abnormal.
Shunt resistance unbalance
21
adjustment fault
22 Communication failure.
23 Motor parameters setting of failure
25 EE data abnormal
26 DC voltage mutation error
27 D axis current control error
28 Q axis current control error
Saturation error of D axis
29
current control integral
Saturation error of Q axis
30
current control integral
Table 4 Analysis of the driving board fault(18K~24K)
Possible reasons for abnormality
1. Power supply input is too high
or too low;
2. Driver board fault.
1. Compressor phase lost;
2. Bad driver board components;
3. The compressor insulation fault.
1. System overload or current
2. Driver board fault;
3. Compressor oil shortage,
serious wear of crankshaft ;
4. The compressor insulation fault.
1. The power supply is not stable;
2. Instantaneous power failure;
3. Driver board failure.
1. System overloads, and the
current is too high;
2. Driver board fails;
3. PFC fails.
1. Input voltage is too high or too
low;
2. Driver board fails.
Driver board fails.
1. Communication wire connection
is not proper;
2. Driver board fails;
3. Control board fails.
Initialization is abnormal.
Driver board EEPROM is abnormal.
1. Power input changes suddenly;
2. Driver board fails.
1. System overload, phase current
is too high;
2. Driver board fails.
1. System overload, phase current
is too high;
2. Driver board fails.
1. System overloads suddenly;
2. Compressor parameter is
not suitable;
3. Driver board fails.
1. System overloads suddenly;
2. Compressor parameter is
not suitable;
3. Driver board fails.
overload;
123
How to deal with
1. Check the power supply;
2. Change the driver board.
1. Check the compressor
wire connection;
2. Change the driver board;
3. Change the compressor.
1. Check the system;
2. Change the driver board;
3. Change the compressor;
4. Change the compressor.
1. Check the power supply;
2. No need to deal with;
3. Change the driver board.
1.Check the system;
2.Change the driver board;
3.Change the PFC.
1. Check the power supply;
2. Change the driver board.
Change the driver board.
1. Check the wiring;
2. Change the driver board;
3. Change the control board.
Reset the power supply.
1. Change EEPROM;
2. Change the driver board.
1.Check the power supply, to
provide stable power supply;
2.Change the driver board.
1. Check if the system is normal;
2. Check if the stop valve is open;
3. Change the driver board.
1. Check if the system is normal;
2. Check if the stop valve is open;
3. Change the driver board.
1. Check if the system is normal;
2. Check if the stop valve is open;
3. Change the driver board.
1. Check if the system is normal;
2. Check if the stop valve is open;
3. Change the driver board.