Neither AC nor Rear Window Defrost will turn on

Need some help.... I can't get AC or rear window defrost to turn on. I can push either the AC Snowflake button or the rear window defrost button and it will light while I am pushing on it but as soon as I release it it turns off. Any thoughts?



Also - don't know if this is a coincidence but I just had my centrifugal fan blow up so I just finished replacing the radiator, hoses, and completed the electric fan conversion.



Need help - heading out on a trip tomorrow.



Thanks