Can’t remove ice tray from GE french door fridge

So turns out the water valve in the back of my fridge was bad. All rusted out. I broke down and called a technician (thankfully) and he said we were lucky it didn't burst, as it probably would have flooded the house. On top of that, the condenser fan motor was dead.

I suspect the former owner knew all of this, and just had his guy go behind the fridge and shut off the main water line to the fridge so they wouldn't have to deal with it before selling the house.

The main danger is hair dryers is that you damage the freezer parts. If you elect to use one, use it on low or no heat. Remember, most modern freezers use plastic for everything they can, and hair dryers are designed to dry hair fast, not defrost freezers.

Compressed air will probably not do it. Compressed air will expand when you use it, which makes it cool down.

My experience is that freezers will freeze up with either insufficient drainage or insufficient air flow. Used to have a Kenmore that would defrost into a pan, but there was nothing to keep the drain in the pan defrosted. After a few service calls, a repairman installed what looked like a specific device to transfer the defrost heat from the coils down into the pan and that problem stopped. Another time there was insufficient air flow into the refrigerator from the freezer, and the freezer became too cold as a result.