No Hot Water
Check the breaker, pilot light, or thermostat first—electrical or gas issues can mimic failures, but misdiagnosis risks burnt elements or gas leaks.
Begin with basic checks: ensure the circuit breaker for the water heater hasn’t tripped (common after storms or power surges), and that the power switch near the unit is on. For gas heaters, confirm the pilot light is lit—if it won’t stay lit, the thermocouple may be dirty or faulty. Never use an open flame to relight a pilot unless the manual explicitly allows it; most newer models use electronic ignition.
If you hear the heating element click but no water heats, sediment buildup is likely insulating the element from the water. Draining a bucket of water from the tank’s bottom valve can reveal cloudy or gritty water—a sign of heavy sediment. Flushing the tank helps, but in older or corroded units, sediment can clog the drain valve or damage the tank bottom. Proceed slowly; sudden flushing can dislodge rust and cause leaks.
Avoid adjusting the thermostat above 120°F unless you have a mixing valve—higher temps increase scald risk and energy use without fixing a broken element. If the water heater is over 10 years old, frequent reset attempts may be a sign of imminent failure. Consider a licensed technician to test voltage at terminals and inspect for corrosion—especially if you smell burning or hear popping, which indicate dry firing or scale accumulation.
