Symptoms
- High-pitched sound while water is running
- Noise stops as soon as the faucet is shut off
- Sound changes pitch as the handle is adjusted
- Noise is louder at higher flow or lower flow, depending on cause
Likely causes
- CommonWorn washer vibrating in the water flowA loose or degraded washer can flutter and create a whine.
- CommonPartially closed shutoff valve under the sinkRestricted flow through a valve creates turbulence and noise.
- PossibleWorn cartridge causing turbulent flowInternal wear changes how water passes through, creating vibration.
- PossibleDebris partially blocking the aeratorCan cause a whistling sound as water squeezes past.
What to do
- Check that both shutoff valves under the sink are fully open, since a partly closed valve is a common and easy fix.
- Remove and clean the aerator, since partial blockage can whistle.
- Run the faucet at different flow levels to see if the noise changes with handle position, which points to the washer or cartridge.
- If the noise persists at a full-open valve and clean aerator, shut off water and inspect the washer for wear.
- Replace a worn washer or cartridge following the same steps as a standard faucet drip repair.
- Turn water back on gradually and test across the full range of the handle to confirm the noise is gone.
Tools and parts
- Adjustable wrench
- Screwdriver
Faucet washer or cartridgeSearch: “faucet washer cartridge replacement kit”
When to call a pro
Call a plumber if the whine is loud, constant, or comes from the pipes rather than the faucet itself, since that can point to a water pressure issue.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.