Suspected a clogged condensation drain line. Took out all the shelves and drawers, condensation unit is toward the bottom of the frdige on inside, I could see that there was ice build up. I unplugged fridge, placed fan in firdge to speed up the thawing of the built up ice. After ice melted enough, I could get face panels and foam off to see that icing caused a backup in drain line, which led to water sitting in trough pan, rusting the trough pan. Rust then accumulated in the drain line, completely blocking it. So water was essentially overflowing to the bottom of the fridge. I unscrewed condenser line, and took out trough pan, replace with new one. Pull up drain line and cleaned it out. Put everything back together. All is well, no more water puddling in the fridge. Saved myself loads of money in a service call.