How to Replace a Faucet Cartridge
Quick Answer
Turn off water, remove handle and retaining clip, pull out the old cartridge, and insert the new one in the same orientation.
How to troubleshoot How to Replace a Faucet Cartridge
A dripping or stiff tap often needs a new cartridge. This guide shows how to remove the old cartridge and install a replacement for a smooth operation.
Step-by-Step Fix
- Turn off the water supply under the sink or at the main shutoff.
- Remove the faucet handle by unscrewing the set screw or cap.
- Remove the retaining clip or nut holding the cartridge in place.
- Grip the cartridge with pliers and pull it straight out.
- Insert the new cartridge, ensuring it aligns with the same orientation.
- Reinstall the retaining clip/nut and the handle.
- Turn water back on and test for leaks and smooth operation.
Common Error Codes
| Code | Meaning | Resolution |
|---|---|---|
| Faucet is stiff | Cartridge not aligned | Remove and reposition the cartridge correctly. |
| Leak continues | Damaged O-ring or wrong cartridge | Replace O-rings or confirm the correct cartridge model. |
Frequently Asked Questions
How do I know which cartridge to buy?
Check the brand and model of the faucet, or take the old cartridge to a hardware store.
Can I rebuild a cartridge instead of replacing it?
Some are rebuildable, but replacing is easier and more reliable.