Water Heater Repair & Replacement in Phenix City, AL

Gas, electric or tankless: what you have changes the fix

A gas tank heater has a burner under the tank, a gas control valve, and either a standing pilot with a thermocouple or electronic ignition. Exhaust goes up a flue through the center of the tank. Most newer gas models also have a flammable vapor sensor near the burner. It's a safety device, and it can lock the heater out if the air intake screen gets clogged with lint or dust.

An electric tank heater usually has two heating elements, upper and lower, each with its own thermostat, plus a high-limit safety switch. There's no flame, but there is household voltage behind those panels, so element and thermostat testing is a job for a technician.

A tankless heater, gas or electric, heats water only as it flows. It's compact and doesn't run out, but it has its own weak points: mineral scale in the heat exchanger, flow sensors, igniters on gas models, and error codes that point to venting or gas supply problems.

Common water heater problems and what they usually mean

The symptom usually points to the cause. Here's what we see most and where we look first.

• No hot water, gas tank: pilot out, worn thermocouple, failed gas valve or a tripped flammable vapor sensor
• No hot water, electric tank: tripped breaker, tripped high-limit switch or a burned-out upper element
• Hot water runs out fast: failed lower element, heavy sediment, a broken dip tube or a heater too small for the household
• Rusty or brown hot water: a used-up anode rod or corrosion inside the tank
• Popping or rumbling: sediment on the bottom of the tank boiling under the burner or element
• Water at the base: often the tank itself, but sometimes a fitting, drain valve or relief valve line
• Rotten-egg smell in the hot water only: usually a reaction between the anode rod and bacteria in the water, not a gas leak
• Tankless error codes or lukewarm water: scale buildup, low flow, venting faults or gas supply problems

The T&P relief valve: the safety part you shouldn't ignore

Every tank water heater has a temperature and pressure relief valve near the top, with a pipe running down toward the floor or outside. If the water inside gets too hot or the pressure climbs too high, the valve opens and releases it. It's the part that keeps a malfunctioning heater from becoming dangerous.

A valve that drips or discharges is telling you something. The valve may be worn, the water may be getting too hot, or pressure in your plumbing may be spiking as the water heats. We find out which. Never cap, plug or remove the discharge pipe to stop a drip. That defeats the safety device.

Manufacturers suggest testing the valve periodically. If yours hasn't been opened in years, it may not reseat after you test it, so it's a good item to have us check during a service visit.

Sediment, flushing and anode rods

Minerals in the water settle to the bottom of a tank over time. On a gas heater, that layer sits between the flame and the water, so the burner works harder and the tank makes popping noises. On an electric heater, sediment can bury the lower element and shorten its life. Flushing the tank on the schedule in the owner's manual keeps that layer under control.

The anode rod is a metal rod hanging inside the tank that corrodes on purpose so the tank lining doesn't. Once it's used up, the tank starts to rust from the inside. Checking the rod every few years and replacing it before it's gone is one of the simplest ways to get more life from a tank heater.

Tankless units need their own care: periodic descaling of the heat exchanger and cleaning of the inlet screen. Skipping it is a common reason tankless heaters throw error codes.

• Flush sediment from tank heaters
• Inspect and replace the anode rod when it's worn down
• Check the T&P relief valve and discharge pipe
• Inspect the burner, pilot and flue on gas models
• Test the elements and thermostats on electric models
• Descale tankless heat exchangers and clean the inlet screens

Repair or replace your water heater?

Plenty of water heater problems are worth repairing. A thermocouple, a heating element, a thermostat, a relief valve, an anode rod or a gas valve on a newer tank can all be replaced, and the heater goes back to work.

Replacement makes more sense when the tank itself is leaking, because a tank can't be patched. It also makes sense when the hot water is rusty because the tank is corroding, when the heater is old and needing repairs back to back, or when your household has outgrown it. The rating plate on the side shows the model and serial number, and we can use those to tell you roughly how old the heater is.

We'll tell you plainly which way we'd go and why. For larger replacements, financing is available, and our upfront pricing means you see the number before we start.

Sizing a replacement: tank vs tankless basics

Tank heaters are sized by capacity and first-hour rating, which is how much hot water the heater can deliver in a busy hour. A household where two showers, the dishwasher and laundry overlap in the morning needs a bigger first-hour rating than a couple who shower at different times.

Tankless heaters are sized by flow rate and temperature rise: how many gallons per minute they can heat, and by how many degrees. Groundwater in the South comes in warmer than it does up north, which helps a tankless unit, but a heater still has to be sized for the fixtures you run at the same time.

Switching to tankless isn't just a swap. A gas tankless unit may need a larger gas line and new venting. An electric tankless unit can draw a lot of power and may need electrical upgrades. We'll walk you through what your home would need before you decide.

What affects the cost of water heater repair or replacement

Every home is set up a little differently, so we quote after we've seen the heater and the space it's in. You'll get a written, upfront price before any work begins.

• Gas, electric or tankless, and the brand and model
• Which part failed, or whether the tank needs replacing
• Tank size or tankless capacity for your household
• Location: garage, closet, utility room or attic
• Changes needed to bring the install up to local code
• Gas line, venting or electrical changes for a switch to tankless

Water heater safety at home

A gas water heater is a fuel-burning appliance, just like a gas furnace. If you smell gas, leave the home and call the gas utility or 911 from outside. Keep paint, gasoline and cleaning products away from the heater, and keep the area around the burner clear so it gets the air it needs.

A blocked or disconnected flue can push exhaust back into the house. That's one more reason to have working CO alarms. Our guide to carbon monoxide and gas appliance safety explains what to watch for, and the same vent and combustion checks we use on a gas furnace apply to your water heater.

The U.S. Department of Energy suggests 120 degrees Fahrenheit as a setting that works for most homes, saves energy and lowers the risk of scalding. If you have young children or older adults in the house, that's especially worth checking.