If your Delta shower faucet won’t turn off, the issue is likely a faulty cartridge, mineral buildup, or incorrect installation. Shut off the water, remove the handle, inspect the cartridge (RP46074, RP19804), and replace it if needed. Clean the valve with vinegar to remove deposits. If issues persist, the valve body may need replacement.
Why Your Delta Shower Faucet Won’t Turn Off?
A Delta shower faucet that won’t turn off can be really frustrating. It wastes water, raises your utility bills, and might cause plumbing problems. This problem typically stems from cartridge failure, installation mistakes, or water pressure issues.
In this guide, we will look at why your Delta shower won’t turn off. We will give you simple troubleshooting steps and expert tips to fix it fast.
Common Causes of a Delta Shower Faucet That Won’t Turn Off
If your Delta shower faucet keeps running, these are the most likely causes:
1. Faulty or Incorrect Cartridge Installation
- Problem: The shower cartridge controls water flow and temperature. If it’s misaligned, worn, or faulty, water will keep flowing even when you turn the handle off.
- Fix: Make sure you have the right Delta cartridge model, like RP46463 for the Delta Check 17 Series, and install it correctly. Use only genuine Delta parts, as aftermarket cartridges may not fit well.
2. Cartridge Not Seated Properly
Problem: If the cartridge isn’t fully inserted into the valve body, water may continue flowing.
Fix:
- Turn off the main water supply.
- Remove the shower handle and trim plate.
- Check if the cartridge is locked in place.
- Reinstall and secure the retaining clip if necessary.
3. Sediment or Mineral Buildup in the Valve
Problem: Hard water deposits can clog the valve, preventing it from fully shutting off.
Fix:
- Remove the cartridge and soak it in vinegar for 30 minutes.
- Flush the valve with water before reinserting the cartridge.
4. Broken Shower Handle or Diverter Malfunction
Problem: A worn-out handle or diverter valve issue can cause water to keep running.
Fix:
- Inspect the handle for cracks or misalignment.
- Replace any damaged parts before reinstalling the handle.
5. Incorrect Water Line or Diverter Setup
Problem: Some Delta shower models need a diverter valve setup. If the plumbing is wrong, water can flow constantly.
Fix:
- Check your Delta valve installation manual.
- Ensure that hot and cold water lines are correctly connected.
How to Fix a Delta Shower Faucet That Won’t Turn Off (Step-by-Step Guide)
Step 1: Turn Off the Water Supply
- Shut off the main water valve to prevent flooding.
- Open another faucet to drain excess water.
Step 2: Remove the Shower Handle & Trim Plate
- Use an Allen key to unscrew the handle set screw.
- Carefully remove the trim plate to access the valve.
Step 3: Inspect & Remove the Cartridge
- Use pliers to pull out the cartridge.
- Check for damaged O-rings, misalignment, or mineral buildup.
- If dirty, soak in vinegar to remove deposits.
Step 4: Install a New Cartridge
- Ensure you use an original Delta cartridge (e.g., RP19804 or RP46463).
- Insert the new cartridge into the valve body and lock it in place.
- Secure the retaining clip and reinstall the handle.
Step 5: Restore Water Supply & Test
- Turn the water back on and check for leaks.
- If the issue persists, contact a licensed plumber.
Preventative Maintenance Tips
To prevent future issues with your Delta shower faucet, follow these maintenance tips:
- Use genuine Delta parts to avoid compatibility issues.
- Clean your shower cartridge every 6 months to prevent mineral buildup.
- Avoid excessive force on the handle to prevent wear and tear.
- Inspect for leaks regularly and address issues early.
FAQs
Why does my shower faucet not turn off?
A faulty cartridge, misalignment, or mineral build-up can stop your shower faucet from shutting off.
Why is my shower faucet still running when I turn it off?
Your Delta shower faucet might have a worn cartridge, improper installation, or a clogged valve that stops it from closing.
Why won’t my shower faucet stop turning?
A damaged shower handle or stripped valve stem can cause continuous turning without shutting off the water.
How do you fix a shower that won’t turn off all the way?
Replace the shower cartridge. Clean any mineral buildup. Then, make sure it seats properly to restore full shut-off function.
Final Thoughts: Fix Your Delta Shower Faucet Today
A Delta shower faucet that won’t turn off is often due to cartridge issues, improper installation, or mineral buildup. By following these step-by-step fixes, you can resolve the problem without calling a plumber.
However, if you’ve tried everything and the issue persists, it may be time to replace the entire shower valve or call a professional for help.
