I Have No Hot Water

No hot water can mean a failed heating element (electric), a failed pilot or gas valve (gas), a tripped breaker, or a failed tankless unit. The type of water heater you have determines who to call and what to check. Do not attempt gas or electrical repairs yourself.

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What to Do Right Now

No hot water from any faucet, or the water runs cold after only a few seconds.

For an electric water heater: check the electrical panel for a tripped breaker — if tripped, reset once; if it trips again, do not reset
For a gas water heater: check that the pilot light is on — if it is out, follow the manufacturer's relighting instructions; if you smell gas, do not relight and call your gas company
For a tankless system: check the unit's display for error codes and make sure the gas valve is open
Check whether other gas appliances (stove, furnace) are working — if not, the issue may be your gas supply, not the water heater

What Not to Do

✗Do not attempt to repair gas valves, thermocouples, or pilot assemblies yourself — gas systems require a licensed professional
✗Do not reset a tripped breaker repeatedly — if it trips again, the heating element may have failed and is creating a short
✗Do not ignore a gas smell — leave the area and call your gas utility company

When to Call a Professional

Call a plumber or water heater professional if the breaker is not tripped (electric), the pilot will not stay lit (gas), or the tankless unit shows an error code. A water heater that is more than 10–12 years old may simply need replacement rather than repair.

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FAQ

I Have No Hot Water — Questions

An electric water heater has no flue pipe on top and no gas line — it runs on a 240V circuit. A gas water heater has a metal flue pipe on top and a gas supply line. Tankless units are usually wall-mounted and can be either gas or electric.