Tech Fundamentals

Finding water leaks with paper towels and food dye

Water travels along frames and wires before it drips, so the puddle is rarely under the leak. Dry everything, lay paper towels at suspect points, and use a few drops of food coloring in the tub or tank to tell appliance water from supply or drain water.

Single source ~30 min easyBrands: All

Before you start

  • Unplug before reaching under wet appliances; water and live parts don't mix
  • Check the floor for soft spots and mold; report to the customer

Diagnostic steps

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OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.

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Finding water leaks with paper towels and food dye · OnCall Tech