A leaking fridge has only a few possible water sources: the defrost drain, the water supply line, the inlet valve, the icemaker fill tube, or the drain pan. The location of the puddle tells you which one. Track the water back to its source before you start tearing things apart.
Most refrigerator symptoms get diagnosed and fixed on the first visit. Flat $149 diagnostic — fully waived when you approve the repair.
Step-by-step
Dry everything. Watch for 30 minutes. Water inside the fridge = defrost drain. Water under the front = drain pan or door condensation. Water at the back-bottom = supply line or inlet valve. Water near the icemaker = fill tube or supply.
Pull the freezer back panel (4–6 screws). At the bottom of the evaporator coil there's a small drain hole. Push a turkey baster of warm water through it — you should hear it gurgle into the drain pan. If blocked, work a piece of stiff wire (not metal that'll puncture) until clear.
Pull the fridge out. Look at the 1/4" copper or plastic line running to the inlet valve. Crimps, hairline cracks, and loose compression nuts all leak. Tighten finger-tight + 1/4 turn with a wrench. Replace any line that's cracked.
With the fridge plugged in and water on, watch the inlet valve at the back-bottom for 10 minutes. A slow drip from the valve body means the valve is failing internally and needs replacement ($40–$80 part).
Remove the icemaker. The fill tube is the small white plastic tube delivering water to the tray. If it's frozen solid or split, water sprays during fill cycles. Thaw with a hair dryer; replace if cracked.
The drain pan sits under the fridge at the back-bottom. Pull it out. A cracked pan or one that's overflowing (because the defrost drain is dumping faster than it evaporates) puddles on the floor. Clean it, check for cracks, replace if needed.
Stop and call
Safety + model triggers
Active drip from the back-bottom that doesn't stop when you close the supply shutoff.
Inlet valve stuck open OR ferrule fitting failed — close the line at the saddle valve immediately.
Water dripping from the freezer ceiling or running down the back wall inside.
Sealed-system or evaporator failure — not a defrost-drain issue, do not keep running.
Water pooling near the power cord or outlet.
Shock + short risk — unplug at the breaker (not the cord) before touching the fridge.
Sub-Zero, Wolf, Thermador, or any panel-ready / built-in column.
Drain pans and supply lines are routed through the cabinet — wrong access cracks panels and trim.
Other reasons to call
FAQs
Either the defrost drain is clogged (water backs up and drips out the front), the drain pan is cracked or overflowing, or the water supply line is leaking. Dry the floor and watch where the next puddle forms — that points to the source.
Push warm water through the drain hole at the bottom of the freezer evaporator with a turkey baster. If clogged, work a thin piece of stiff wire or pipe cleaner gently through it until water flows freely into the drain pan below.
Yes — left alone, it warps flooring, breeds mold under the unit, and (if it's a supply line) can flood a kitchen. Most fixes are 15-minute DIY jobs. Don't ignore it.
Defrost drain clear: $149–$220. Inlet valve replacement: $189–$280. Supply line: $149–$200. Our flat $149 diagnostic is waived when you approve the repair.
Clogged defrost drain. Water from the auto-defrost cycle has nowhere to go and pools at the bottom of the cabinet. Clear the drain (step 2 above).
Related service
When your fridge dies, the clock starts. We run same-day routes across Minneapolis, St. Paul, and Central MN with sealed-system techs, OEM parts on every truck, and a flat $149 diagnostic that's fully waived when you approve the repair.
Local service area
More guides