C1
Daikin
Daikin air conditioner error C1
Meaning
Communication failure. Between main-sub PCB
General meaning for the brand's models, unless a model's own manual says otherwise.
Meaning
Failure of transmission (between indoor unit PCB and sub PCB)
General meaning for the brand's models, unless a model's own manual says otherwise.
Meaning
Low stage cool - legacy mode only
Models
DX16TC, DX18TC, DX7TC, DZ16TC, DZ18T, DZ7TC
Causes and how to check
- 1 possible causes
- the cited manual page, and follow-up questions
No account needed to look up codes.
Guides
- Communication error between indoor and outdoor unit: what to check, in which order
Communication (transmission) error codes usually come from the connecting wire, the supply or a board. The checks from easy to hard.