Many hidden leaks start behind an appliance. The small water line to your fridge, the hoses on your washer and the connection under your dishwasher are all under pressure 24 hours a day. When one cracks or loosens, water can soak into the floor before you notice. This guide shows where appliance water lines fail and how to check them. If you find damage and cannot tell where it is coming from, call our water leak detection team at (951) 299-3473.
Which appliance water lines leak most often?
The most common are refrigerator ice maker lines, washing machine supply hoses, dishwasher supply and drain connections, and water heater connections. Thin plastic ice maker tubing and old rubber washer hoses are the weakest parts.
| Appliance | Weak point | What you may notice |
|---|---|---|
| Refrigerator | Plastic ice maker line, valve behind fridge | Damp floor, swollen cabinet base, slow ice |
| Washer | Rubber supply hoses, shut-off valves | Water behind the machine, rust on valves |
| Dishwasher | Supply line, drain hose, door seal | Warped floor in front, wet cabinet under sink |
| Water heater | Flex lines, relief valve, tank | Water in the pan or on the garage floor |




