coach and chassis battery switches in 2006 tour master

[babyrattles]

we have a 2006 T40 A model tour master, just got it back from warranty work and noticed that the coach battery switch does not light up in the green color anymore, either way i move it, left or right it does not light up, the chassis battery switch works Ok, green when on, and and no color when off.
Need help. thanks baby rattles,