A Sub-Zero leaking water most often has a clogged or frozen defrost drain, a cracked or misaligned drain pan, a leaking water inlet valve or supply connection, an ice maker fill tube problem, or a leaking water filter head.
Water under a built-in can damage hardwood floors and cabinetry quickly. Find the source and stop the water first.
If water is reaching cabinetry or flooring, shut off the water supply to the refrigerator now. The valve is usually under the sink or behind a nearby cabinet panel.
Check These First (5 Minutes, No Tools)
- Shut off the water supply valve to the refrigerator if water is pooling.
- Identify where the water appears: inside the fresh food section, under the crispers, under the unit, or at the toe-kick.
- Check the water filter is seated and not cracked.
- Look for ice in the bottom of the freezer (a sign of a frozen drain).
Most Common Causes
| Cause | What happens | Fix |
|---|---|---|
| Clogged / frozen defrost drain | Meltwater backs up into the cabinet and overflows. | Pro |
| Drain pan | Cracked or misaligned pan spills defrost water. | Pro |
| Water inlet valve | Valve leaks at fittings or doesn't close fully. | Pro |
| Ice maker fill tube | Frozen tube diverts water outside the mold. | Pro |
| Filter head | Cracked housing or bad seal. | DIY / Pro |
| Supply line | Loose compression fitting behind the unit. | Pro |
How We Fix It
We trace the water path, clear and flush the drain, check the drain heater, replace damaged pans, valves or tubes, and verify there are no leaks before we leave.
When to Call a Technician
If the basic checks above don't solve it within a few hours, or if you hear repeated clicking, see an alarm or service indicator, or notice water under cabinetry, call us at (725) 237-7399. The $75 service call is credited toward your repair, repairs carry a 1-year parts and 180-day labor warranty, and we stock the Sub-Zero parts behind most of these failures.
Typical Cost
| Repair | Typical range |
|---|---|
| Defrost drain clog / leak repair | $225 – $425 |
| Water inlet valve replacement | $325 – $545 |
| Freezer ice maker assembly replacement | $475 – $850 |
Typical totals for parts and labor in the Las Vegas area. The $75 service call is credited toward your repair, and every repair is backed by a 1-year parts and 180-day labor warranty. Your exact price depends on the model, the part and access, and you approve a firm quote before any work begins. Full price list →
Still Not Working? We Can Help Today.
$75 service call, credited toward your repair · 1-year parts · 180-day labor warranty · EPA 608 certified · Mon–Fri 8am–7pm · Sat–Sun 8am–4pm