動どう作さ不ふ良りょう

noun

malfunction; defective operation; operational failure

Technical term for when a machine, device, or system does not work as intended. Common in engineering, IT, and product documentation.

• この装そう置ちは動どう作さ不ふ良りょうを起おこしている。

  This device is malfunctioning.

• 動どう作さ不ふ良りょうの原げん因いんを調ちょう査さ中ちゅうです。

  We are investigating the cause of the operational failure.