Plumbing
No hot water, or hot water runs out quickly
Likely cause, what to safely try first, and whether it gets worse if you wait.
Likely cause
A failed heating element/igniter, a tripped breaker/thermostat, or (tank units) sediment buildup insulating the element.
What to try first
- For electric water heaters, check the dedicated breaker hasn't tripped and the reset button on the unit hasn't popped.
- For gas water heaters, check the pilot light is lit and the gas supply valve is open.
- Note the tank's age (often on a sticker) — units over 10-12 years old are more likely a replacement than a repair.
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