malfunction
verb
[ malˈfʌŋ(k)ʃ(ə)n ]
• (of a piece of equipment or machinery) fail to function normally.
• "the unit is clearly malfunctioning"
Similar:
crash,
develop a fault,
go wrong,
break down,
break,
act up,
be defective,
be faulty,
fail,
cease to function/work,
stop working,
conk out,
go kaput,
fall over,
play up,
pack up,
malfunction
noun
• a failure to function normally.
• "a computer malfunction"