Trane 4TXK6512G1000AA Service Manual page 178

10.6 4TXK6512G1000AAfailure code
LED flash
times of
indoor
Contents of Malfunction
outdoor
display
PCB
1 F12 EEPROM ERROR
2 F1 IPM protection
3 F22 AC overcurrent protection
4 F3 Communication fault
5 F20 Press overload
Overvoltage or underv-
6 F19
oltage protection
7 F27 Press blovked/stoped
Discharging temp.senor Td
8 F4
abnormal
9 F8 DC fan motor fault
10 F21 Te resistance fault
11 F7 Ts resistance fault
12 F6 Ta resistance fault
13 F25 Td resistance fault
The press suction
14 F30
too high
15 E7 Communication fault
16 F13 Lack of refrigerant
17 F14 Four-way valve fault
EEPROM chip damaged or data fault
Input over current occured been detected by PIM hardware
The AC current value exceeds the total current stop value
in EE.Error lock if appear 3 times within 30 minutes.
Communication failure between outdoor board and module
Send from the module.
The voltage of P/N exceed or below the EE voltage limmit of
the module board.
Send from the module,3 times within 30 minutes send to indoor
board
After the press is started for10 minnutes,the Td temp.exceed the
temp. in EE.3 times within 30 minutes send to indoor board.
Error status confirm and lock if occurs 3 times within
30 minutes
Start up and test immediately
Start up and test immediately
Start up and test immediately
After starting up 10 minnutes to test, 3 times within 30 minutes
send to indoor board.
After starting up 10 minnutes to test, for 5 minutes,the Ts temp.
tpmp.is
was detected to be over 40°C then shut down compressor send
to indoor board. Starting again in three minutes.
Communication failure between indoor unit and outdoor unit
The comressor runs continuously for more than 5 minutes
and the current value of outdoor unit is 0.6A-1.6A.Meet the
cool/ heat conditions,flashing outdoor lights.
Check the indoor unit coil temp.,after the heating compressor
starts up 10minutes,Tc≤0°C last on one minute,then stop the
compressor.
Deforsting and deforsting exit will not be detected within
5 minutes
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Diagnosis and Analysis