No ′40s movie heroine worth the name would have a house that let in gusts of gelid air, had a heating system that went on the fritz constantly and leaked.
2006, Nero Blanc, Death on the Diagonal, page 191,
“Or your cell-phone reception went on the fritz. We know how often that happens.”
2010, Ralph Bowersox, Ralph's True Stories: Entertaining Chronicles of Life in Clarion County, Pennsylvania, Late 1920s through the Present Day, page 185,
Some time ago, a tenant called me and said her refrigerator was on the fritz. I had a spare, so I took it down to her and exchanged it for her old one.
Unknown. Attested from 1902, originally meaning “in a bad way” or “in bad condition”, malfunctioning of an appliance. Perhaps from German name Fritz, or by onomatopoeia.[1][2]