If your water heater is leaking or malfunctioning, quick action is vital: 1. Turn Off the Water Supply: Close the shut-off valve on the cold water inlet to stop water flow and minimize damage. 2. Turn Off Power or Gas: For electric heaters, switch off the power at the circuit breaker. For gas heaters, close the gas supply valve. 3. Assess the Situation: Inspect the heater for leaks, unusual noises, or other signs of trouble. 4. Address Minor Issues: Tighten loose fittings or replace worn parts. For serious problems, like a leaking tank, seek professional help. 5. Contact a Professional: For significant issues, consult a licensed plumber to diagnose and repair the heater safely. 6. Consider Replacement: If the heater is old or frequently breaks down, replacing it may be more cost-effective. Consult a technician for advice. These steps will help you quickly and safely restore your hot water supply.