Hisense GBF18H-S User Manual page 115

7 . T R O U B L E S H
7 . T R O U B L E S H
Fault
Fault Description
code
Phase current detection,
2
out of step
Initialization, phase
3
current imbalance
Speed estimation, step
4
out of failure
5 IPM FO output fault
Communication between
6 driver board and control
board fault
AC voltage,overload
7
voltage
DC voltage,overload
8
voltage
9 AC voltage imbalance
The current detection
10
circuit fault
11 AC voltage supply in
Products of single-phase
12 PFC over-current, FO
output low level
Inverter over current
13 (3-phase power supply air
conditioners)
14 Inverter over current
ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V6.0
O O T I N G
O O T I N G
Possible Reason of Abnormality
5,Compressor oil shortage, serious wear of
crankshaft.;
6.The compressor insulation fault
1. Compressor voltage default phase;
2. Bad driver board components;
3. The compressor insulation fault
Bad driver board components.
1,Bad driver board components;
2,Compressor shaft clamping;
3.The compressor insulation fault.
1.System overload or current overload.
2,Driver board fault;
3, Compressor oil shortage,serious wear of
crankshaft;
4,The compressor insulation fault.
1,Communication wire connect not well;
2,Driver board fault;
3,Control board fault;
1,Supply voltage input too high or too low;
2,Driver board fault;
1,Supply voltage input too high ;
2,Driver board fault;
Driver board fault;
Bad driver board components;
1,Power supply abnormal, power frequency
out of range;
2,Driver board fault;
1,System overload, current too large;
2,Driver board fault;
3,PFC fault.
1,System overload, current too large;
2,Driver board fault;
3， Compressor oil shortage, serious wear of
crankshaft;
4,The compressor insulation fault.
1,System overload, current too large;
2,Driver board fault;
3,Compressor oil shortage,serious wear of
crankshaft;
4,The compressor insulation fault.
How to Deal With
4, Change Compressor;
5, Change the Compressor;
6, Change the Compressor.
1,Check compressor wire connection;
2, Change the driver board;
3, Change the Compressor.
Change driver board .
1, Change driver board ;
2, Change the Compressor ;
3, Change the Compressor .
1,Check the air-conditioner system;
2,Change the driver board;
3, Change the Compressor;
4, Change the Compressor.
1, Check compressor wire connect.
2,Change the driver board;
3,Change the control board ;
1,Check power supply;
2,Change the driver board;
1,Check power supply;
2,Change the driver board;
Change the driver board;
Change the driver board
1,Check the system;
2,Change the driver board;
1,Check the system;
2,Change the driver board;
3,Change PFC.
1,Check the system;
2,Change the driver board;
3, Change the Compressor;
4, Change the Compressor.
1,Check the system;
2,Change the driver board;
3, Change the Compressor;
4, Change the Compressor.
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