自己 じこ解凍 かいとうではありませんでした
jikokaito udewa arimasendeshita

Noun
Desu Copula
no-Adjective

The polite, past negative form of 自己解凍

1. Was not self-defrosting.; Was not a self-defrosting model.

Past/Perfective
Negative
Polite
Formal Register
Computing