自動 じどう解凍 かいとうではありませんでした
jidōkaito udewa arimasendeshita

Noun
Desu Copula
no-Adjective

The polite, past negative form of 自動解凍

1. Was not automatic defrost.; Was not self-defrosting.

Past/Perfective
Negative
Polite
Formal Register
Computing