20
DIAGNOSIS AND SOLUTION
EEPROM error diagnosis and solution (E0/F4)
Error Code
E0/F4
Malfunction decision conditions
Indoor or outdoor PCB main chip does not receive feedback from EEPROM chip.
Supposed causes
S
Installation mistake
S
PCB faulty
Troubleshooting:
Fig. 23 – Troubleshooting
Fig. 24 – Indoor PCB
Fig. 25 – Outdoor PCB
NOTE: Fig. 24 and Fig. 25 are for reference only and may differ from the items on your unit.