Trane 4TYK8536B1000AA - Page 54

13. Troubleshooting
53SS-SVM001A-EM
Fault
code
Fault description Possible reasons for abnormality How to deal with Remarks
13
Compressor
overheat protector
device
1. The wiring of the overload protector
is connected loosely.
2. The overload protector fails .
3. The refrigerant is not enough;
4. The installation pipe is much
longer than the normal one, but extra
refrigerant is not added ;
5. The expansion valve fails;
6. The outdoor control board fails.
1. Reconnect the wiring of the overload
protector;
2. Replace the overload protector;
3. Check the welding point of the unit
to confirm whether it is leakage, and
then recharge the refrigerant;
4. Add the refrigerant;
5. Replace expansion valve;
6. Replace the outdoor control board.
14
The high pressure
switch operation or
the unit is turned
off for high
pressure protection
1. The wiring of the high pressure
protector is connected loosely;
2. The high pressure protector fails;
3.The outdoor control board is
abnormal;
4.Overload in cooling.
1. Reconnect the wiring of the high
pressure protector;
2. Replace the high pressure protector;
3. Replace the outdoor control board;
4. Please refer to Table 2.
Applied to
models with
high pressure
switch or
pressure
sensor
16
Overload
protection
in cooling mode
System overload Please refer to Table 2.
17
Discharge
temperature
sensor fault
1. The wiring of the discharge tempe-
rature sensor is connected loosely;
2. The discharge temperature sensor
fails;
3.The sampling circuit is abnormal.
1. Reconnect the wiring of the
discharge temperature sensor;
2. Replace the discharge temperature
sensor;
3. Replace the outdoor control board.
18
AC voltage is
abnormal
1. The AC voltage>275V or <160V;
2. The AC voltage of sampling circuit on
the driver board is abnormal.
1. Normal protection, please check the
supply power;
2. Replace the driver board.
43
High Pressure
sensor fault
1. The wiring of the high-
pressure pressure sensor connect is
loose;
2. The high-pressure
pressure sensor fails;
3. The sampling circuit of
the highpressure pressure sensor
fails.
1. Reconnect the wiring of the
high-pressure pressure sensor;
2. Replace the high-pressure
pressure sensor;
3. Replace the outdoor control
board.
45 IPM fault
There are many reasons for this
failure. You can check the driver
board fault LED to further analyze
the fault code of the drive board and
to learn about what leads to the
fault and how to operate it. Specific
information can be seen in table
3,table 4.
See attached “analysis of the
driving board fault”.