I need to know how much I could sell my 2003, white, side-by-side General Electric
Refrigerator? Model #-TFX22NW2A

Condition means a lot and how many weeks you are willing to have people call and come look at it.

Appears most similar are going in the 125 to 300 dollar range locally here on craigslist.

Check the gasket all the way around. Move the fridge out from the wall and vacuum the opening over the motor and fan.
I agree that 300 is the max for a white side by side, but maybe more like 150 - 200.
I bought a new fridge a year ago and our electric bill has gone down $35/month. It will pay for itself in 4 years. So older ones are not worth much, and freezer on the bottom is a lot more efficient than side by side.

I just bought three new ones this year ( one for the home, and a couple for businesses I do) I buy at the scratch and dent store, And get new double wides for 400 to 500 and new single wides for 200 to 300. Got one ( really big dent in side ( there are walls) for 150, not delivered)

Check Craigslist.