Symptoms
- Handle won't move at all in either direction
- Handle feels solid, not just stiff
- Faucet may have been unused for a long time (vacation home, spare bathroom)
- Visible corrosion or crust at the base of the handle
Likely causes
- CommonHeavy mineral scale seizing the mechanismVery common in faucets that sit unused for long periods.
- CommonCorroded metal stem or cartridgeRust can fuse moving parts together.
- PossibleBroken internal cartridge or stemA cracked part can jam the mechanism entirely.
- PossibleOvertightened retaining nutCan clamp the stem too tightly to move.
What to do
- Turn off the water supply under the sink before doing anything else.
- Remove the decorative cap and handle screw, then gently try to lift the handle straight off.
- If the handle won't separate from the stem, apply a penetrating lubricant around the base and let it sit 10–15 minutes.
- Try again with gentle, steady pressure, using a handle puller tool if the faucet has one available.
- Once removed, inspect the stem or cartridge for scale, corrosion, or cracks.
- Clean corrosion with vinegar and a brush, or replace the stem/cartridge if it's damaged.
- Avoid hammering or heavy force, which can crack the faucet body.
- Reassemble, apply fresh plumber's grease, and test that the handle turns freely before restoring water.
Tools and parts
- Handle puller
- Penetrating lubricant
- Screwdriver
- Adjustable wrench
Faucet cartridge or stem kitSearch: “faucet stem cartridge replacement kit”
When to call a pro
Call a plumber if the handle won't release with gentle force and lubricant, since forcing it risks breaking the faucet body.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.