E1 E3 E4 E5 E6 E7 E8 E9 Ea Eb": Temperature Sensor Error - Midea LRSJF-V120 Technical Manual

MCAC-RTSM-2012-07
B. "E1 E3 E4 E5 E6 E7 E8 E9 EA Eb": Temperature sensor error
Wire
controller
Display
Method of
malfunction
detection
Supposed
Causes
Troubleshooting
Error code
Is temperature port on PCB
loose?
The chip's pins do not match
correctly or the chip is defective.
, turn the power on again, is the
code displayed?
Temperature sensor is
short or defective.
NO
E1"E3 E4 E5 E6 E7 E8 E9 EA Eb
Malfunction is detected according to the temperature detected by each
temperature sensor.
1. Temperature sensor cables don't connect correctly.
2. The sensor terminal is loose.
3. The sensor circuit is short or open
4. The main control board's clamp diodes are short or open.
NO
NO
YES
Fasten the port.
YES
Insert the chip correctly or replace it with a
fine one
YES
Replace the temperature sensor
Replace the main control
board.
M-thermal Technical Manual (part 4)