No Hot Water in Fort Worth? Quick Checks Before You Call

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When every tap runs cold, the heater has stopped, often for a simple reason: a blown-out pilot, a tripped breaker or reset button, no gas reaching the burner, or a tankless unit locked out with an error code. If only one faucet or shower runs cold, suspect that fixture. If the checks below don't bring the heat back, Plumber 24 Fort Worth can find the failed part.

Gas smell near the heater? Skip these checks. Leave the building first, and don't flip switches or light anything, including the pilot. From outside, call 911 or Atmos Energy, then call us at (817) 755-5621: we send our on-call plumber right away. See what to do if you smell gas.

Cold everywhere, lukewarm, or one tap?

Cold at every tap: the heater isn't firing. Check fuel, power and ignition below.
Lukewarm everywhere, or hot that gives out early: a dead lower element, broken dip tube, low thermostat, heavy sediment, or cold water leaking into the hot side.
One fixture cold, the rest hot: the heater is fine; look at that shower cartridge or faucet.
Hot, then cold mid-shower: usually a tankless unit short on water flow or gas, or with a scaled heat exchanger.

Lukewarm everywhere? Check the dial first: the Consumer Product Safety Commission recommends 120°F, and much lower feels tepid. In older homes, like the bungalows of the Oakhurst Historic District along Sylvania Avenue, rusted galvanized pipe can choke hot-water flow to the fixtures farthest from the heater.

Water on the floor around the tank? Close the cold valve above it and read water heater leaking from the bottom.

Gas tank: pilot, gas supply and status light

Control knob on "On", not "Pilot" or "Vacation", and the temperature dial not at its lowest mark.
Flame. Look through the sight window near the base. No glow means the pilot is out or the igniter isn't sparking.
Gas supply. The gas valve handle on the heater's supply line should run parallel to the pipe. If a gas range or other appliance won't light either, gas is off before it reaches the heater, possibly shut off at the meter by Atmos Energy. Don't turn a meter back on yourself; see our Atmos red tag page.
Relight once using the steps on the tank's label. A pilot that dies when you release the knob usually means a worn thermocouple or flame sensor.
Status light. Electronic gas valves blink a pattern; the label's chart decodes it.

Newer tanks have a flammable-vapor sensor that shuts the burner down if it detects fumes; once tripped, it usually needs a plumber. A power-vent tank (fan on top) needs electricity, so check its plug.

Electric tank: breaker and reset button

Electric tanks usually have upper and lower elements and thermostats behind access panels, plus a red reset button. The terminals carry 240 volts, so keep the breaker off while a panel is open.

Breaker: if the heater's double breaker has tripped, reset it once. If it trips again, leave it off.
Reset button: breaker off, upper panel off, insulation folded aside, then press the button. Restore power and allow an hour or two to reheat.
If it trips again, a thermostat is sticking or an element has shorted.

Tankless: error codes, power, flow and gas

Error code: write it down before resetting; it tells the plumber which parts to bring.
Power: gas tankless units typically need electricity. Check the plug, GFCI and breaker.
Flow: the burner needs a minimum flow, typically about half a gallon per minute, which a low-flow faucet opened partway may never reach.
Gas: if it cuts out when a second shower or the range starts, the line may be too small; see tankless water heater gas line.
Scale: minerals coat the heat exchanger and clog the inlet screen. A descale often clears overheat codes.

Mixing valves and crossovers

A single-handle shower blends hot and cold in a pressure-balancing or thermostatic cartridge; a limit stop caps the hot side. A worn cartridge or a stop set too low gives a shower stuck at warm while the sink beside it runs hot: a shower repair, not a heater job.

A failed mixing valve can also push cold into the hot piping, making the whole house lukewarm. Test it: close the cold valve into the heater and open a hot tap. A trickle that fades is normal; a steady stream means a crossover at some faucet, shower or recirculation valve.

Repair or replace, plus coupons

Many no-hot-water problems come down to one failed part: thermocouple, igniter, gas control, element, thermostat, reset switch, dip tube, tankless sensor, or scale that needs a descale. Replacement makes sense when the tank itself leaks, when rusty water appears near the end of a tank's typical 10 to 15 years, or when an old tank needs a major part. Tankless units are built to outlast tanks, often past 20 years, so repair usually wins there. All work is done under Texas plumbing license # M-27587. See water heater repair and installation.

Coupons (terms on our coupons page): $0 dispatch fee with a repair, $150 off a new water heater, $50 off for new customers, and 10% off for seniors, military and first responders.

No hot water questions

Is it safe to relight a water heater pilot myself?

Yes, if there's no gas smell and you follow the steps on the tank's label. If you smell gas, leave the building without flipping switches or lighting anything, then call 911 or Atmos Energy from outside. A pilot that won't stay lit usually means a failed part.

Why is the kitchen hot but the shower lukewarm?

The heater is working, so the shower valve is the fault: a worn cartridge or a limit stop set too low. Replacing or adjusting it usually fixes the problem.

Why is there no hot water after a power outage?

Gas tankless units and power-vent tanks need electricity, so they stop during an outage. Once power returns, check the plug, GFCI and breaker. An electric tank then needs an hour or two to reheat.

Does replacing a water heater need a permit in Fort Worth?

Yes. The city's residential permitting rules say changing, installing, moving or repairing plumbing, including water heaters, requires a plumbing permit. The plumber doing the work pulls it, and the job is not finished until a city inspector signs off.

Still no hot water?

Call (817) 755-5621 with the fuel type, what you've checked and any error code. If nothing is leaking, we book a visit at a time that suits you. If the tank is leaking, water won't shut off or you smell gas, call at any hour and we send our on-call plumber right away: 24/7 emergency service across Fort Worth and our service areas.