The Short Answer
Every appliance that uses water has a supply side and a drainage side. On the supply side, an inlet valve, a filter housing or a saddle fitting can weep. On the drainage side, a blocked defrost drain, a clogged filter or a failed pump sends water where it should not go. Seals sit between the two: a door gasket or a sump seal that has hardened lets water escape under pressure. Identify the side first, and the part usually follows.
Start with the Quick Checks
Note when the water appears. A puddle that shows up after a defrost cycle points at the refrigerator drain. Water during or right after a dishwasher cycle points at the door seal or drain hose. A steady drip with the appliance idle points at a supply fitting or inlet valve. Wipe the area dry, run the appliance, and watch where the first drop returns. That single observation saves a lot of guesswork.
Notes by Brand
- Sub-Zero built-in refrigeration: a frozen or clogged defrost drain is the classic cause of water pooling in the fresh-food floor or under the unit. The ice-maker inlet is the second suspect.
- Bosch and Cove dishwashers: these use an anti-flood base pan. A leak that reaches the pan trips the float and shows as an E15 on a Bosch, so the leak and the code are the same story.
- Miele dishwashers: the Waterproof system will shut off supply on a detected leak. A recurring shutoff means the leak is real and needs tracing, not resetting.
- Viking, Thermador and Monogram: ice-maker and dispenser lines run through the door or cabinet, and a cracked line or loose fitting there leaks intermittently with use.
Symptom to Cause
| What You See | Likely Cause | What We Check |
|---|---|---|
| Water pooling under a refrigerator | Clogged defrost drain or cracked drain pan | Drain line, pan condition, and ice-maker inlet |
| Water in the fresh-food floor | Frozen defrost drain backing up | Drain tube and defrost cycle |
| Dishwasher leaking at the door | Worn gasket, overfill, or suds | Door seal, inlet valve, and detergent use |
| Dishwasher leaking underneath | Sump seal, pump, or drain hose | Sump, pump housing, and hose connections |
| Steady drip with appliance idle | Inlet valve or supply fitting | Valve seal and every water fitting |
Protect the Floor First
If water is reaching wood flooring, a ceiling below, or an outlet, shut off the appliance and close its water supply before doing anything else. Standing water near a compressor or a dishwasher control board is an electrical hazard, not just a cleanup.
What We Do on Site
We reproduce the leak under real conditions, because a leak that only appears mid-cycle is invisible when the appliance is off. Once we see the source, we replace the failed seal, valve, pump or line and confirm dry operation through a full cycle before we leave. You get a written estimate before any parts go in.
Finding Water on the Floor?
Book a diagnostic visit. Diagnostic and travel fees, if applicable, are confirmed before the appointment and before repair approval.
Frequently Asked Questions
Where Is the Water Under My Refrigerator Coming From?
Most often a clogged defrost drain that overflows the internal pan, or the ice-maker water line. Less often the drain pan itself has cracked. If the water is clear and appears after a defrost cycle, the drain is the first suspect.
Why Does My Dishwasher Leave Water on the Floor?
A worn door gasket, an overfilling inlet valve, or a loose drain hose connection are the usual causes. Suds from the wrong detergent can also force water past the door seal. We trace the leak to its source rather than guessing at a single part.
Is a Leaking Appliance an Emergency?
If water is reaching a wood floor, a finished basement below, or an electrical outlet, treat it as urgent. Shut off the appliance and its water supply and book right away. A slow drip that stays in a pan can wait for the next available window.
Related
Dishwasher Repair
Door seals, pumps and drain faults on luxury dishwashers.
Frost Buildup
When a frozen drain is the reason water backs up.
Emergency Repair
When a leak cannot wait for the next open window.