If your kitchen sink won't turn on, the first thing you should do is check the water supply. Make sure that the main water valve is turned on and that there are no leaks or blockages in the pipes leading to your sink. If there is an issue with the water supply, it could be the reason why your sink won't turn on.Check the water supply
Next, take a look at the faucet handle. Sometimes, the handle can become stuck or jammed, preventing it from turning on the water. If this is the case, try gently wiggling the handle or using some lubricant to loosen it up. If the handle is broken or damaged, it may need to be replaced.Check the faucet handle
The aerator is the small screen at the end of your faucet that helps to control the flow of water. Over time, it can become clogged with debris or mineral buildup, which can cause issues with water flow. Try removing the aerator and cleaning it out with a toothbrush and some vinegar. If the aerator is damaged, replace it.Check the aerator
If the water pressure in your kitchen sink is low, it could be due to a problem with your home's water pressure. You can check the water pressure by using a gauge or by turning on other faucets in your home. If the pressure is low throughout the house, you may need to call a plumber to address the issue.Check the water pressure
Every sink has shut-off valves located under the sink that control the flow of water. If one of these valves is turned off, it could be the reason why your sink won't turn on. Check to make sure that both the hot and cold water valves are fully open.Check the shut-off valves
If your kitchen sink has a garbage disposal, it's possible that a clog or jam in the disposal could be preventing the sink from turning on. Try running the disposal and seeing if that helps to clear the issue. If the disposal is not working, it may need to be repaired or replaced.Check the garbage disposal
The pipes under your sink can become clogged or damaged, causing issues with water flow. Take a look at the pipes and check for any blockages or leaks. If you notice any issues, you may need to call a plumber to repair or replace the pipes.Check the pipes under the sink
If your kitchen sink is not turning on, it could be due to an electrical issue. Check the circuit breaker for your kitchen and make sure that it hasn't tripped. If it has, try resetting it and see if that resolves the issue.Check the circuit breaker
If your kitchen sink only has issues with hot water, it could be due to a problem with your hot water heater. Check the heater and make sure that it is functioning properly. If it needs to be repaired or replaced, contact a professional.Check the hot water heater
If you have tried all of the above steps and your kitchen sink still won't turn on, it may be time to call a plumber. They will be able to diagnose and fix any underlying issues that are preventing your sink from working properly. In conclusion, there can be a variety of reasons why your kitchen sink won't turn on. By following these steps and troubleshooting the issue, you can hopefully resolve the problem and get your sink back up and running. Remember, if all else fails, don't hesitate to call a professional for help.Call a plumber