Guide
The ice-maker line behind the fridge
Quick answer
A pinhole in the thin tube behind a refrigerator can soak cabinets and subfloor before anyone sees a puddle in the kitchen.
Why this leak hides
The plastic or copper tube that feeds an ice maker sits behind a heavy appliance. Water often runs under the fridge, along the kickplate, and into the next cabinet or the hallway. By the time someone notices a soft spot or a musty smell, the subfloor may already be wet.
Pull the fridge only if you can do it without standing in water or yanking the power cord across a puddle. If the floor is already wet, shut the house water at the main valve first.
What to shut off
Many refrigerators have a small saddle valve or a quarter-turn stop on the supply line. If you cannot reach it safely, the main house valve stops the rest of the damage. Unplug the fridge only from a dry position.
What to photograph
Take a wide shot of the kitchen that shows how far water traveled. Then close-ups of the line, the valve, staining on the kickplate, and the first wet room beyond the kitchen. Those photos matter more to an adjuster than “it came from the fridge.”
A moisture meter reading from a restorer, if one is on site, belongs in the same folder. Keep originals. Do not crop out the adjacent rooms.
Coverage is not automatic
A sudden supply-line failure is discussed differently from a slow leak that went unnoticed for months. Your policy language controls. This site does not decide coverage, hire a crew, or bid a job.