We discovered the family room circuit breaker in off position doesn’t turn off any circuits in the family room. Other 3 breakers in this quad breaker are fine. We checked and no other breaker in the main panel can kill the family room circuits. So that makes us believe one of the 4 breaker in this unit has gone bad.
Problem is we can’t find a 15A rated 2 double pole breaker anywhere online or in a local store.
So my question is what can else can I use as an alternative?