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Plumbing Services in Houston/
Water Heater Services in Houston/
Water Heater Repair in Houston
Water Heater Repair in Houston
Most no hot water calls come down to a handful of parts. On electric tanks, elements and thermostats. On gas tanks, the thermocouple, igniter or gas control valve. None of that can be confirmed from a web page, but the symptom does narrow it down before anyone arrives.
What to do first
If the heater is only failing to make hot water, nothing here is urgent. If it is leaking, or you can smell gas, deal with that before anything else.
If you smell gas, leave the building first and call your gas utility from outside. Do not switch anything on or off on the way out, and do not go back in to look for the source.
If water is coming from the tank, close the cold water inlet valve on top of the heater. It is the handle on the pipe running into the unit.
For an electric heater, switch its breaker off at the panel, as long as the panel is dry and you can reach it without standing in water.
For a gas heater, turn the control knob on the front of the unit to the off position. Leave the gas valve at the meter alone unless the utility or the fire service tells you otherwise.
Keep out of standing water around the unit, particularly if it sits near the breaker panel or its own wiring.
The water in the tank stays hot for hours. Do not open the drain valve onto a floor you are standing on.
If there is no hot water and nothing is leaking, check whether the breaker has tripped on an electric unit, or whether the status light on the front of a gas unit is showing anything. Sometimes that is the whole story.
Then send a request. Say whether it is gas or electric, where it is installed, and whether there is water in the pan.
Symptoms and what they usually point to
No hot water, electric: tripped high limit switch, failed upper element or thermostat
No hot water, gas: pilot or igniter problem, thermocouple, or gas control valve
Lukewarm at every tap: thermostat setting, one failed element of two, or a crossover between hot and cold
Hot then cold quickly: sediment, failed lower element, or broken dip tube
Popping and rumbling: sediment layer on the tank floor
Rusty hot water: corrosion inside the tank or a spent anode rod
Rotten egg smell in hot water only: bacteria reacting with the anode rod
Hot water at some fixtures but not others: a fixture problem, not the heater
What a repair visit usually involves
Confirming power or gas is reaching the unit, testing the components that match the symptom, checking the T and P valve, looking at the anode rod on older tanks, and inspecting connections and the pan for signs of a slow leak.
A plumber should tell you if the tank itself is the problem rather than a part. That conversation is more useful than a repair that buys three months.
Before you request service
Check whether the heater is gas or electric, and note the approximate age from the label
Note the tank size if it is printed on the unit
Say where it is installed: attic, garage, closet or exterior
Mention any water in the pan or on the floor
Say whether the problem started suddenly or got worse over weeks
Questions people ask us
Why do I have no hot water at all?
On an electric heater, a tripped breaker or a failed upper thermostat and element are the usual causes, and there is a reset button on the high limit switch that trips for a reason worth finding. On a gas heater, the pilot or igniter, the thermocouple or the gas control valve are the common failures. Both are diagnosed at the unit.
Can a water heater be repaired if it is leaking?
It depends on where the water is coming from. Fittings, the drain valve, the T and P valve and the connections on top are all repairable. Water weeping from the tank seam or the bottom of the tank is not, because the inner tank has failed. That is a replacement.
Is the reset button a fix?
It is a symptom. The high limit switch trips when the water gets too hot, usually because a thermostat or element failed in the closed position. Pressing it can restore hot water for a while, but the part that caused it is still there.
Ready to get this fixed?
Send the details and a plumber working in your area will follow up with you.