No Hot Water: What to Check First

Illustration: water heater troubleshooting for homeowners

Cold showers have a cause—start with simple checks

Whole-home loss of hot water is the topic of this page. Work through the safe checks below, then call a professional if the issue isn’t obvious—or if anything involves gas odors, breakers that won’t stay on, or leaks.

Ready for a pro? Call (844) 936-0420.

Referral/help content only. Independent local providers handle service; availability varies.

Repair-vs-replace and sediment noise belong on water heater repair. Tank leaks belong on leaking water heater—not here.

Quick triage

Is it only one faucet? Try another hot faucet far from the first.
- One fixture → aerator, mixing valve, or cartridge issue may be local to that tap (not a water-heater “no hot water” call).
- All fixtures → stay on this page; focus on the water heater or whole-home hot line.
Do you have cold water? If you have no water at all, this may be a supply or shutoff issue—see emergency plumbing.
Any leaks at the heater? Water on the floor is a leaking water heater problem (or emergency plumbing if it’s flooding). Contain, shut off supply if safe, and leave this page.

Electric water heater checks

Confirm the heater’s breaker is on. If it tripped, reset once. If it trips again, stop and call a pro.
Some homes have a nearby disconnect switch—verify it wasn’t turned off during other work.
Listen/feel (carefully): a working unit may give subtle cues; silence after a long period with no hot water can mean failed elements or thermostat—diagnosis belongs to a technician.

Avoid opening electrical panels beyond a simple breaker reset if you’re uncomfortable.

Gas water heater checks

Confirm the gas valve to the heater is open.
Check whether the pilot / ignition system status matches your manual (many modern units are electronic).
If you smell gas: leave immediately and follow local emergency guidance. Do not try to relight anything.

If your heater is tankless

Stop here and use tankless water heater repair (error codes, scale, inlet filters). This page stays on tank / whole-home loss of hot water.

When to call instead of continuing

Call (844) 936-0420 if:

You’ve checked breakers/valves and still have no hot water
The breaker trips repeatedly
You smell gas
You’re unsure which system you have
Anyone in the home needs hot water for medical or caregiving reasons and can’t wait

Prepare: heater fuel type, approximate age, and whether the problem started suddenly or gradually. If the tank is leaking, that’s leaking water heater, not a no-hot-water check.

Related guides

Parent: Water heater repair
Tankless water heater repair — if the unit is tankless
Leaking water heater — if the tank is wet
Emergency plumber — no water at all, gas odor, or flooding
Plumbing hub

FAQ

Could a water softener or filtration system cause no hot water? Sometimes related equipment or shutoffs affect flow. Note any recent work on softener/filter bypass valves when you call.

Is lukewarm water the same as no hot water? Not always—partial heat can point to a single failed element (electric), sediment, or thermostat issues. If you still have some hot water, also see water heater repair for recovery and sediment problems.

Will I need a new water heater? This page only covers restoring hot water. Repair vs. replace questions belong on water heater repair.

Call to connect with a local professional

(844) 936-0420

Guides by city

Same topic with local context for homeowners in these metros. Coverage still varies by time and location—these are guides, not local offices.

Or start from a metro router: All location hubs.