Rust on Jenn Air Refrigerator Door at Water... (by 2 users)

You may end up respraying the door, but here goes.-

First mechanically remove as much of the rust as you can with an old screwdriver or similar scraper. Then use coarse emery cloth - 80 -120 grit untill all you're left with is shiny metal with rust pits.
You may need to go out further than you think - about 1" all round.

Then use a paint- on de-rusting fluid from vehicle products supplier. When all rust is black or dissapeared, use a zinc primer on all the bare metal. (this will stop it reacuring)

Then either spray the area with an "appliance white" aerosol or squirt it into the cap, and use a paintbrush.

If you are spraying it, open all house windows and doors, cut a mask from newspaper- then tape it to the fridge. Use blankets , plastic dustsheet or old sheets to protect things, and spray it from 12" in several very light coats.

When done, "polish" with T cut - which should remove the rust stain too.

Seal the area of the original leak with a white or clear silicone - and sort the original leak out.

If you polish the plastic with a silicone spray, water will tend to stay put rather than seep.