If you have a Sub-Zero refrigerator, then you know that it is a quality appliance. These refrigerators are known for their durability and performance. However, like all appliances, they can sometimes experience problems. If you find your Sub-Zero refrigerator leaking water, don’t worry – we’re here to help! In this blog post, we will provide some troubleshooting tips that should help you fix the problem.
Why Is Your Sub-Zero Refrigerator Leaking Water and How Do You Fix it?
There isn’t just one common cause when you find your Sub-Zero refrigerator leaking water, there are actually a few different reasons you could be experiencing this issue. Let’s learn more about this, starting with water lines!
Leaking Sub-Zero Refrigerator Water Line
One of the most common reasons a fridge leaks water is due to a problem with the waterline. If you find your Sub-Zero water dispenser dripping this is likely the problem. The water line starts under the fridge behind the kickplate and connects to the fridge to bring fresh, clean water in. If there is a leak in this line, then it could cause water to drip out of your fridge. Check the line to see if it is connected securely, and secure the connection. If not check for damage, and if it’s damaged you will need to replace the waterline. If you suspect the leak coming from the refrigerator water line, call a professional refrigerator repair technician for diagnosis and repair.
Sub-Zero Water Filter Leak
Another common reason for your fridge leaking is due to a problem with the water filter. The water filter is located in the back of the fridge and it helps to remove impurities from the water. If this filter is damaged or not installed correctly, then it could cause a leak. You will need to replace the water filter if it is damaged. Filter leaks can happen to OEM filters but are more common with generic filters. We would highly recommend against generic filters for that and other reasons.
Take a look at Sub Zero’s guide for How to purchase Sub-Zero Water Filters here.

Frost Inside Sub-Zero Refrigerator
Is your Sub-Zero refrigerator leaking water? If you notice frost or ice buildup inside your Sub-Zero refrigerator, this could be another reason why water is leaking from your fridge. This condensation in Sub-Zero refrigerator can cause frost. When there is too much frost or ice inside the fridge, it can cause the door seal to loosen. This will let warmth enter the fridge and cause water to condense and drip out. Check the door seal to see if it is damaged or loose if you’re finding water inside Sub-Zero refrigerator. If it is, you will need to have the seal or gasket replaced. Contact a professional Sub-Zero refrigerator technician if you suspect your door seal needs replacement.
Leaking Sub-Zero Drain Pan
The drain pan is located under the fridge and it collects water that drips from the defrost cycle. Is your Sub-Zero drip tray overflowing? If this pan is damaged, it can make it so your Sub-Zero refrigerator leaks water from the bottom of your fridge. You will need to replace the drain pan if it is damaged.
These are just a few common reasons why your Sub-Zero refrigerator may be leaking water. If you’re still having trouble troubleshooting the problem, we recommend calling the professional Sub-Zero refrigerator repair team at Kerenza Appliance Repair. They will be able to diagnose the problem and should be able to fix it quickly and efficiently.