The answer to 'sink not working' is that there are several common causes, including a clogged drain, a broken garbage disposal, or a faulty faucet. Symptoms may include water not draining properly, foul odors, or the sink not filling up with water. Solutions can range from DIY fixes like using a plunger or drain snake to calling a professional plumber for more complex issues.
If the sink is completely blocked and water is not draining at all, it's likely a clogged drain that may require using a plunger or drain snake to clear the blockage. If the sink has a garbage disposal, make sure it's working properly and not jammed. A faulty faucet could also be the culprit, with issues like a leaky faucet or low water pressure indicating a problem with the faucet mechanism.