Diagnosis And Solution - Midea MSV1-12HRDN1-MQ0W Service Manual

10.3 Diagnosis and Solution

10.3.1 EEPROM parameter error diagnosis and solution(E0/E5)
Error Code
Malfunction decision
conditions
Supposed causes
Trouble shooting:
Shut off the power supply and
turn it on 5 seconds later. Is it
still displaying the error code?
Yes
If the EEPROM chip
is welded on main
PCB, replace the
main PCB directly.
Otherwise, check
whether the
EEPROM chip
plugged in main PCB
well?
Yes
Replace the main PCB.
EEPROM: a read-only memory whose contents can be erased and reprogrammed using a pulsed
voltage. For the location of EEPROM chip, please refer to the below photos.
Indoor PCB
E0/E5
Indoor or outdoor PCB main chip does not receive feedback
from EEPROM chip.
Installation mistake
●
PCB faulty
●
No Correct the connection.
Outdoor PCB(MOC-12HFN1-MTOW)
49