Midea C Series User Manual

AC Fan Coil Unit Two-pipe Wall-
mounted Series
- 30 -
12.7.1 E2: Room temperature T1 sensor check channel is abnormal.
E2: Room temperature T1 sensor check
channel is abnormal.
No
T1 connecting wire between sensor and
main board gets loose
Yes
Reconnect and ensure that the
connection is reliable.
No
Temperature sensor is short-circuited or
punctured
Yes Replace sensor.
No
Chip fault or chip foot sheds odd or chip is
inverted.(correct mode is semicircular
bent alignment)
Yes
Reinstall chip or install other chip
with same model on the faulty unit to
check whether there is something
wrong with the chip.
No
No
Main board error: for example, getting
wet.
Yes Replace main board.
12.7.2 E3: T2 evaporator sensor malfunction
12.7.3 E7: EEprom malfunction
E7 : EEprom malfunction.
Replace indoor main PCB board
E2: T2 ev aporator se nsor malfunction
T2 connecting wire between sensor and
mainboard gets loose.
Temperature sensor is short-circuited or
punctured.
Chip fault, or chip foot sheds off, or chip
is inverted. (correct mode is semicircular
ben t alignment)
Mainboard error: for example, getting
wet.
Reconnect and ensure that
the connection is reliable.
Rep lace sensor.
Reinstall chip, or install
other chip with same
model on the fau lty unit, to
check whether there is
something wrong with chip.
Rep lace mainboard.
OK
OK
OK
OK
Exist
Exist
Error
E3: T2 evaporator sensor malfunction

Midea C Series Specifications

General

Brand	Midea
Model	C Series
Category	Air Conditioner
Language	English