Midea MCD-18HRFN1-QRC4 Service Manual page 124

Troubleshooting
2.4.1.3. Indoor EEPROM malfunction
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 PCB,
replace the PCB
directly. Otherwise,
check whether the
EEPROM chip
plugged in PCB well?
Yes
Replace the indoor PCB.
2.4.1.4. Full-water malfunction
130
No Insert the EEPROM well
Electrical Control System