Vivax ACP-12CC35AECI Service Manual page 148

Troubleshooting
2.4.4 For the outdoor unit
2.4.4.1. E0 malfunction
E0 display
Outdoor EEPROM malfunction
Power off, then restart the unit 2
minutes later
Yes
Replace the outdoor main PCB
EEPROM: An electrically erasable programmable read-only memory whose contents can be erased and
reprogrammed using a pulsed voltage.
Electrical Control System 145