Troubleshooting; Compressor Over Current Protection; Indoor Coil Overheat Protection - Tadiran Telecom TGI-07H Technical Manual

11. TROUBLESHOOTING

When the control unit generates the protective action , press the sensor
switch – over button , the trouble code will be displayed on the LCD screen
on the indoor unit to help debug and repair : When the air conditioner gets
in trouble and brings about trouble codes are tabulated below
( ☻ means led lights up and stays on ; ☺ means led blinks ) :
Trouble description
Room temperature sensor
abnormal.
Indoor coil temperature
sensor abnormal.
Indoor coil frozen
Indoor coil overheated
Power interruption
Compressor over current
Fan motor locked
Trouble with the Eeprom

1. Compressor over current protection

Depends on the over current protection value of the overlpad
protection device in a model.

2. Indoor coil overheat protection.

Refer to the heating mode.
3. Indoor coil anti – freeze protection.
Refer to the cooling mode.
4. Time delay start protection : After turning off , the compressor will
not be restarted until 3 minutes later to protect the compressor.
5. Faulty indoor fan motor : If the indoor micro processor , according to
the position signal of the indoor fan motor rotor , judges that the
motor is not operating , locked or vibrating abnormally , it will cut off
the indoor fan motor's drive signal , and restarts the motor 3 minutes
later ; If the fault accurs 4 times within 30 minutes , the air conditioner
turns off and displays the error code . The unit will not restart until
powered on.
LED DISPLAY
Error
High
code
Operatio
power
1
2
3
4
☺
6
☺
7
☺ ☺
8
☺ ☺
13
38
Timer Power
☺
☺
☺ ☺
☺
☺ ☺
☺