MLCAC-UTSM-2010-10 Troubleshooting
Outdoor Units 93
10.3.1.2. Outdoor unit malfunction
10.3.1.3. Indoor EEPROM malfunction
If the EEPROM chip
is welded on PCB,
replace the PCB
directly. Otherwise,
check whether the
EEPROM chip
plugged in PCB well?
Yes
No
Yes
Insert the EEPROM well
Replace the indoor PCB.
Shut off the power supply and
turn it on 5 seconds later. Is it
still displaying the error code?
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