Loading ...
Loading ...
Loading ...
14.TROUBLESHOOTING
Fau
l
t
co
de
Fault description
Possible reasons for abnormality
H
ow to de
a
l
with
1
Q axis c
urrent
detection
, failure
in
drive
control
1. Compressor wire is not connected
properly;
2. Bad driver board components;
3. Compressor start load is too large;
4. Compressor demagnetization;
5. Compress or oil shortage serious
wear of crankshaft;
6. The compressor insulation fails.
1. Check the wire of the compressor;
2. Change the driver board ;
3. Turn on the machine after the
pressure is balanced again;
4. Change the compressor;
5. Change the compressor;
6. Change the compressor.
2
Phase current detection,
failure in drive control
1.Compressor voltage default phase;
2.Bad driver board components;
3.The compressor insulation fault.
1.Check c
ompressor wire c
onnection;
2.Cha
nge th
e
driver board;
3.Change the compressor.
3
Initialization, phase
current imbalance
Bad driver board components. Change the driver board .
4
Speed estimation,
failure in drive control
1.Bad driver board components;
2.Compressor shaft clamping;
3.The compressor insulation fails.
1.Change the driver board ;
2.Change the compressor ;
3.Change the compressor .
5 IPM FO output fault
1. System overload or current
overload.
2. Driver board fails;
3. Compressor oil shortage,serious
wear of crankshaft;
4. The compressor insulation fault.
1.Check the air conditioner system;
2.Change the driver board;
3.Change the compressor;
4. Change the compressor.
6
Communication
between driver board
and control board fault
1.Communication wire is not connected
well;
2. Driver bo
ard fault;
3.
Contro
l boar
d fault;
1. Check compressor wire connection.
2. Change the driver board;
3. Change the control board ;
7
AC voltage,overload
voltage
1. Supply voltage input is too high or
too low;
2. Driver board fails;
1.Check power supply;
2.Change the driver board;
8
DC voltage,overload
voltage
1. Supply voltage input is too high ;
2. Driver board fault;
1. Check power supply;
2. Change the driver board;
9 AC voltage imbalance
Dr
iver bo
ard fa
ils
;
Change the driver board;
10
The PFC current
detection circuit fault
before compressor is
ON
Bad driver board components; Change the driver board
11
AC voltage supply in
outrange
1.Power supply abnormal, power
frequency out of range;
2.Driver board fails;
1. Check the system;
2. Change the driver board;
12
Products of
single-phase PFC
over-current, FO
output low level
1. System overload, current is too large;
2. Driver board fault;
3. PFC fault.
1. Check the system;
2. Change the driver board;
3. Change PFC.
Inverter over current
(3-phase power supply
air conditioners)
1. System overload, current is too large;
2. Driver board fault;
3. Compressor oil shortage, serious
wear of crankshaft;
4. The compressor insulation fault.
1. Check the s
y
stem;
2.
Cha
nge th
e
driver board;
3. Change the compressor;
4. Change the compressor.
13 Inverter over current
1. System overload, current is too large;
2. Driver board fault;
3. Compressor oil shortage,serious
wear of crankshaft;
4. The compressor insulation fault.
1. Check the system;
2. Change the driver board;
3. Change the compressor;
4. Change the compressor.
14
PFC over
current(single-phase
air-conditioner)
1. System overload, current is too large;
2. Driver board fault;
3. PFC fault.
1. Check the system;
2. Change the driver board;
3. Change PFC.
Phase imbalance or
phase lacks or the
instantaneous power
failure (only for
3-phase power supply
air conditioners)
1.3-Phase voltage imbalance;
2.The 3-phase power s
upply phase
lost;
3. Power supply wiring is wrong;
4. Driver bo
ard fault.
1, Check the power supply;
2. Check the power supply;
3. Check the power supply wiring
connection;
4. Change the driver board.
15
The instantaneous
power off detection
1.The power supply is not stable ;
2.The instantaneous power failure ;
3.Driver board fault;
1. Check the power supply;
2. Not fault;
3. Change the driver board.
Table 3 Drive fault code (36K/60K)
58
Loading ...
Loading ...
Loading ...