radiator fans question

I checked to see if my cooling fans came on this morning and wasn’t sure if both are supposed to be on.
I got the engine up to normal temp and noticed
the driver’s side fan comes on when I turn on the A/C but the passenger side fan never came on.
Is this fan on the passenger side supposed to come on at normal op temp? Car was parked the whole time and temp guage was at where it normally is.
I’m checking this out because the car runs hot when I start slowing down in the heat of the day.
I need to get this fixed fast or I’m going to end up stranded somewhere in PHX.

thanks,
js

Yep, it should come on.
Possible problems: Fan relay, Fan motor. Both sold at your local autoparts store.