U9
Gree
Gree air conditioner error U9
Meaning
Outdoor Unit Zero Cross Over Error
General meaning for the brand's models, unless a model's own manual says otherwise.
Meaning
AC power zero voltage detect error
General meaning for the brand's models, unless a model's own manual says otherwise.
Meaning
Zero- crossing malfunction of outdoor unit
Models
GWH09MB-K3DNA2K, GWH09MB-K3DNA3K, GWH09MB-K3DNA4K, GWH09MB-K3DNA5K, GWH09MB-K3DNB3K, GWH09MB-K3DNC8K, GWH09MB-K3DNC9K, GWH09MB-K3DNE1K, GWH12MB-K3DNA2K, GWH12MB-K3DNA3K, GWH12MB-K3DNA4K, GWH12MB-K3DNA5K, GWH12MB-K3DNB3K, GWH12MB-K3DNC8K, GWH12MB-K3DNC9K, GWH12MB-K3DND3K, GWH12MB-K3DNE1K
How the unit shows it
- Indoor operation indicator: OFF 3S and blink 18 times
Causes and how to check
- 1 possible causes
- the cited manual page, and follow-up questions
No account needed to look up codes.
Model series: GWH