PC 40
Midea
Midea air conditioner error PC 40
Meaning
Communication error between outdoor main chip and compressor driven chip
Models
easy pro 3d inverters series
Causes and how to check
- the cited manual page, and follow-up questions
No account needed to look up codes.
Model series: EASY
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.