Low air warning

[jhaggerty]

I have an '83 MC9. Last trip out, the low air warning buzzer quit working. Is there a common cause for this? I imagine the buzzer is o.k. and it is probably a wiring issue. Any advice would be appreciated.

Thanks

Jim

[JackConrad]

    Does the buzzer work with low oil pressure?  If so, check the low air switch. If the low oil does not set off the buzzer, check the buzzer. There is also a small bracket with diodes to prevent hot, engine, low air, & low oil from backfeeding the other indicator lights when activated.  Jack