Daikin ComfortNet DX7TC Service Instructions Manual page 111

TROUBLESHOOTING
Troubleshooting
Error Code:
d2 - System mismatch
Applicable Models:
Outdoor AC
Outdoor HP
Methof of Error Detection:
Communication data from indoor
unit
Error Decision Conditions:
When required CFM exceeds
maximum CFM limit of the indoor
unit. When a connected indoor
unit is not EEV type.
Board Flashes
d2
Is the outdoor unit
No
and indoor unit
combination in
AHRI website?
Yes
ERROR CODE - d2
Error Code - d2
Replace to certified combination
Make sure the airflow trim
settings have not been set to
prohibited value.
111