Most water heater faults are a specific component rather than the tank, and most of those components are inexpensive. The exception is the tank itself, which cannot be repaired — so the first useful thing any plumber can do is tell you honestly which of those two situations you are in.
Napps Plumbing — Longview & East Texas since 1957
The symptom narrows it a long way. Describing yours accurately on the phone often means we arrive with the right part.
On electric, usually a tripped high-limit reset or a failed upper element. On gas, usually the pilot, thermocouple or gas valve. Both are ordinary repairs.
Runs out much faster than it used to. Usually a failed lower element on electric, or a sediment bed occupying the volume that used to hold water.
Rust-coloured hot water means corrosion inside the tank. A rotten-egg smell is usually bacteria reacting with the anode rod — unpleasant, and fixable.
Steam forcing through hardened sediment. A flush may clear it if caught early; once established it signals a tank working well beyond what it should.
A fitting or the T&P valve can be repaired. A leaking tank body cannot — that is a replacement, and it is worth acting on before it becomes a flood.
Error codes, reduced flow and ignition faults. In this area an overwhelming share of tankless problems trace back to scale in the heat exchanger.
Water heaters are among the more diagnosable appliances in a house, provided somebody checks in a sensible order.
Start with the high-limit reset — a red button behind the upper access panel. If it has tripped, something caused it to, so resetting it is a diagnostic step rather than a fix. After that it is almost always the upper element or its thermostat. Both are inexpensive parts and both are frequently misdiagnosed as a dead water heater.
Plumbing Repair →Usually the pilot has gone out, and the question is why. A thermocouple that no longer holds the gas valve open is the most common answer, followed by a dirty pilot orifice or a failing gas control valve. Relighting it and having it go out again within a day or two points firmly at the thermocouple.
Gas Line Repair →On electric this is the classic signature of a failed lower element — the upper element heats the top portion of the tank, so you get some hot water, briefly, and never a full tank. On gas it is more often sediment insulating the burner from the water. Both are worth diagnosing rather than living with, because both mean the unit is running far longer than it should.
Water Heater Services →If the tank body itself is leaking, no repair exists — the steel has corroded through and welding a pressure vessel that holds scalding water is not something anyone should attempt. Beyond that, a unit past about twelve years facing a significant repair is usually better replaced, because the tank is at the end of its life regardless of which component failed this week.
Water Heater Installation →Indicative — we test rather than assume.
| Symptom | Electric | Gas |
|---|---|---|
| No hot water at all | High-limit reset or upper element | Pilot, thermocouple or gas valve |
| Warm, never hot | Failed lower element | Sediment over the burner |
| Runs out quickly | Lower element or sediment | Sediment or dip tube |
| Rusty water | Spent anode, tank corroding | Spent anode, tank corroding |
| Water under the tank | Fitting, T&P, or tank | Fitting, T&P, or tank |
Or call 903-758-6482 — 24/7
Check the cheap causes first, quote flat, and be straight about when the tank is finished.
Those three narrow it considerably before anyone opens a panel, and they decide what we bring.
Resets and elements before control boards and gas valves. It is faster and it costs you less.
You approve a figure first. If the tank is finished we say so rather than selling you a repair on it.
We test recovery, check the anode and T&P, and show you the shut-off and flush valve before we go.
Two of these are urgent. The rest get more expensive if left.
Cheap causes checked first, and honesty about when the tank is done.
Or call 903-758-6482 — available 24/7
These come straight from our Google Business Profile — unedited, and updated automatically as new reviews come in.
What people ask when the hot water stops behaving.
On an electric unit, check the breaker first, then the red high-limit reset button behind the upper access panel — a tripped reset is a very common cause. Bear in mind that something caused it to trip, so if it trips again do not keep resetting it. On a gas unit the usual cause is a pilot that has gone out, which most often means a failing thermocouple rather than a coincidence.
It depends on the component. Elements, thermostats, thermocouples and anode rods are at the inexpensive end and cover the large majority of faults. Gas control valves are substantially more. A leaking tank is not repairable at any price. We diagnose first and quote a flat rate, so you decide with an actual number in front of you.
Almost always internal tank corrosion, because the sacrificial anode rod has been used up and the steel tank has become the thing that corrodes instead. If it is caught early, replacing the anode can slow it considerably. If the water is heavily discoloured the corrosion is well advanced and you are looking at replacement.
Sulphate-reducing bacteria reacting with the magnesium anode rod, producing hydrogen sulphide. It is genuinely unpleasant and it is not a plumbing failure. The usual fix is replacing the standard anode with an aluminium-zinc one, sometimes alongside a sanitising flush. It is a straightforward repair.
You can, and in this area it is worth doing annually. Switch off the power or set the gas to pilot, connect a hose to the drain valve, and let it run until clear. Two cautions: the water is scalding, and on an old tank that has never been flushed the drain valve sometimes will not reseal afterwards. If your heater is more than a few years old and has never been flushed, it is worth having done rather than discovering that at the end of a hose.
It depends where. A leaking fitting, connection or T&P valve is a repair. A leaking tank body is not — the steel has corroded through, and there is no safe way to repair a pressure vessel holding scalding water. If water is coming from the tank itself, plan a replacement and treat it as urgent, because it will not stay a small leak.
Installation, tankless and water treatment each have their own page.
We check the inexpensive causes first — and tell you honestly when the tank is finished.
Tell us the age of the unit, whether it is gas or electric, and what it is doing. If the tank is leaking, please call instead of using the form.
