Carrier 42QHC012D8S Series - Page 73

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18.3.3 For the outdoor unit
18.3.3.1 Outdoor EEPROM malfunction(ODU E0)
Yes
Replace the outdoor main PCB
Replace the outdoor main PCB
Power off, then restart the
unit 2 minutes later
Power off, then restart the
unit 2 minutes later
EEPROM: An electrically erasable programmable read-only memory whose contents can be erased and
reprogrammed using a pulsed voltage.