TCL TACM2O-14HIA, Руководство по обслуживанию, Страница: 48 / 59

Air Conditioner Service Manual
47
ONE TO 3/4 TYPE:
11.3 Examples of repairing
11.3.1 Display E1 or E2
Reasons:
1) The sensor connection terminal loose or not plugged in.
Wall type
Cassette type/Duct type
Solution: Check the connecter of sensor and slot (CN6, CN6-1, CN6-2), if loose or not plugged in,
please connect again.
2) Room temperature sensor (IRT) and Indoor pipe (coil) temperature sensor (IPT) damage (short or
broken).
Solution: check the resistance of the sensor wall type R (25
℃
)
=
5 kΩ, cassette and duct type R
(25 ℃ )
=
5 kΩ, if short or broken please replace it.
Expansion
valve
Sensor
circuit LP HP Motor
Compressor
driving
Switch power supply
Communication
Filter circuit for
heavy current
Rectifying filtering
circuit
4-Way valve
EEPROM