If your model is a 200, 300, 500, or 600 Series, then this is the right article for you. If your refrigerator is a Classic (formerly Built-In), Designer (formerly Integrated), 700, 400, or 648PRO refrigerator, then these models need professional expertise, and all you have to do is to contact your Factory Certified Service.

Your Sub-Zero refrigerator, like any other refrigerator, has a drain gutter and a drain tube that are located at the bottom of the refrigerator, and a drain pan bellow that collects the condensation. Sometimes, food debris or frozen water might clog the drain tube, which will prevent your Sub-Zero refrigerator to properly drain the condense. As a result, water will begin to pool under the refrigerator’s drawers, and if enough water accumulates, it will drip when the door is opened.

1. To fix this, you will have to turn your Sub-Zero refrigerator off, either from the unit ON/OFF button or by turning the control dial down past 1 to OFF.
2. In the second step, you will have to remove the crisper glass shelf and drawers and wipe the drain gutter with a towel or sponge until it dries off. If you see little to no water in your refrigerator’s compartment, it means that your Sub-Zero is facing another issue, and you will have to call your Factory Certified Service. IMPORTANT: Disconnecting the drain tube from the drain gutter may void your warranty.
3. If you see ice in the refrigerator compartment, the drain tube is likely to be frozen, and all you have to do is to take a hairdryer and use it on the low setting to defrost the unit.
4. As  mentioned earlier, food debris is another factor that may lead to obstruction. In order to remove it, use a compressed air duster (or any other pressurized air source) to blow out the drain. IMPORTANT: Using anything sharp that can pierce the drain tube may void your warranty.
5. Now it’s time to uncover the drain pan that is located below the refrigerator. In order to do so, you will need to remove the two screws that are holding the kickplate and remove it. 201, 501, and 601 models have a lower grille; remove it by unscrewing the two bolts on the bottom corners, and then pull the bottom of the grille out and up to release.
6. The next step is to mix one quart of warm water with two caps of bleach and a few drops of dish detergent and use a turkey baster to pour the solution down the drain tube slowly. Let the solution rest for approximately 5 minutes, and then rinse the drain tube with warm water.
7. Empty the drain pan, and then clean it out.

After following this troubleshooting, water still continues to accumulate, contact your local Sub-Zero  Service Center.