not functioning

busted defective faulty ruined wrecked

dead disabled down gone out shot spent wracked

coming unstuck fallen apart feeble gone to pieces haywire imperfect in disrepair in need of repair in the shop inoperable inoperative kaput on the blink on the fritz out of commission out of kilter out of order out of whack run down screwed-up unsatisfactory weak

perfect repaired

fixed working

derelict dilapidated neglected

broken broken-down kaput not in service on the blink on the fritz out of commission out of order worn-out

bonkers broken busted defective disabled down fallen apart faulty gone to pieces haywire in disrepair in need of repair in the shop inoperable kaput kerflooey not working on the fritz on the shelf out out of commission out of kilter out of order out of whack run down shot spent wrecked