Carrier 40MFC - EEPROM Parameter Error Diagnosis and Solution (E0;F4)

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1 --- EEPROM parameter error --- diagnosis and solution (E0/F4)
Error Code E0/F4
Malfunction conditions Indoor or outdoor PCB main chip does not receive feedback from EEPROM chip.
Possible Causes
• Installation mistake
• Defective PCB
Trouble shooting:
If the EEPROM chip
is welded on main
PCB, replace the
main PCB directly.
Otherwise, check
whether the
EEPROM chip is
plugged into main PCB
well.
Yes
No
Yes
Correct the connection.
Replace the main PCB.
Shut off the power supply and
turn it on 5 seconds later. Is it
still displaying the error code?
A14480