20
DIAGNOSIS AND SOLUTION (CONT)
Table 17—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.
Potential causes
S Installation mistake
S Faulty PCB
Troubleshooting
Power off, then restart the unit
2 minutes later
Replace the indoor/outdoor
main PCB
Yes
EEPROM: A read−only memory whose contents can be erased and reprogrammed using a pulsed voltage. For the location of EEPROM
chip, refer to the following images.
Fig. 16 – Outdoor PCB
NOTE: Fig. 16 is for illustration purposes only and may differ from your actual unit.
To Next Page
Loading...
