## Why Won’t My Kitchen Sink Turn On?
A non-functioning kitchen sink can be a major inconvenience, especially when you need to wash your hands, prepare meals, or clean up. If your kitchen sink is not turning on, there are a few potential causes that you can troubleshoot.
### Common Causes of a Kitchen Sink Not Turning On
**1. Clogged Aerator:**
The aerator is a small screen at the end of the faucet that helps to mix air with water, creating a stream that is both powerful and efficient. Over time, the aerator can become clogged with mineral deposits or debris, which can restrict water flow.
**2. Faulty Faucet Cartridge:**
The faucet cartridge is a small, cylindrical device located inside the faucet that controls the flow of water. If the cartridge becomes damaged or worn out, it can prevent water from flowing through the faucet.
**3. Loose or Damaged Water Supply Lines:**
The water supply lines connect the faucet to the water supply pipes under the sink. If the lines are loose or damaged, they may not be able to deliver water to the faucet.
**4. Clogged Drain:**
Although it may seem counterintuitive, a clogged drain can also prevent your kitchen sink from turning on. When the drain is clogged, water cannot flow down the drain, which can create back pressure that prevents water from flowing out of the faucet.
### Troubleshooting and Repair Steps
**1. Check the Aerator:**
* Unscrew the aerator from the faucet using a wrench or pliers.
* Clean the aerator by soaking it in vinegar or CLR for a few minutes.
* Use a small brush to remove any stubborn debris.
* Screw the aerator back onto the faucet.
**2. Replace the Faucet Cartridge:**
* Turn off the water supply to the faucet.
* Remove the faucet handle by pulling it straight up.
* Use a wrench to remove the cartridge retaining nut.
* Pull out the old cartridge and insert the new cartridge.
* Reinstall the cartridge retaining nut and tighten it securely.
* Reinstall the faucet handle.
**3. Inspect the Water Supply Lines:**
* Check the connections where the water supply lines attach to the faucet and the water supply pipes.
* Tighten any loose connections.
* If the lines are damaged, replace them with new ones.
**4. Unclog the Drain:**
* Use a plunger to try to unclog the drain.
* If the plunger doesn’t work, remove the drain cover and use a drain snake to clear the clog.
* If the clog is severe, you may need to call a plumber to snake the drain from the main sewer line.
### Additional Tips
* If none of the above solutions work, there may be an issue with the water supply itself. Check if other fixtures in your home are experiencing water flow problems.
* If you are not comfortable performing any of the repairs yourself, it is best to call a licensed plumber for assistance.
* Regular maintenance, such as cleaning the aerator and checking for leaks, can help to prevent problems with your kitchen sink in the future.
### Conclusion
A non-functioning kitchen sink can be a frustrating inconvenience, but it is often a problem that you can troubleshoot and repair yourself. By following these steps, you can restore water flow to your kitchen sink and get back to your daily routine.