調ちょう整せい中ちゅう

expression

under adjustment; being adjusted; out of service

Used for equipment, systems, or schedules that are currently being adjusted or are temporarily unavailable. Often seen on signs or in notices.

• このエレベーターは調ちょう整せい中ちゅうです。

  This elevator is out of service for adjustment.

• システムは現げん在ざい調ちょう整せい中ちゅうです。

  The system is currently being adjusted.