Water Heater Repair in Hendersonville, TN
Tell us what your water heater is doing, and a licensed contractor who covers Sumner County will get in touch.
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What winter in Hendersonville does to a water heater
Cold water needs more energy to heat. From October through April, with nights averaging 30°F, incoming water runs colder and your water heater works longer on every cycle to bring it up to temperature. Over seven months of that, the extra run time wears on the heating element in an electric unit, or the burner and igniter in a gas one.
Sumner County has seen 13 winter storms in the past ten years, and storms like these knock out power. A gas water heater with a standing pilot keeps making hot water through an outage. One with an electronic ignition will not light again until the power is back on.
- 30°F
- the average winter night, and colder incoming water means longer heating
- 7 months
- October through April, the months homes here need heat
- 20%
- of Tennessee households lost power for a day or more in 2024, and a heater with an electric element or electric ignition stops without it
NOAA nClimDiv, 1991–2020 normals
A new water heater would cut about $280 a year off hot water for a typical Tennessee home.
Estimates for a typical Tennessee home, compared with an older unit built to the federal minimum, from EIA household energy data and Tennessee fuel prices. Your home will differ.
Repair makes sense when an element, thermostat or gas valve has failed.
Replacement makes sense when the tank itself is leaking.
- Why is my water heater leaking from the bottom?
- Most of the time this means the tank itself has rusted through and is failing. Water heaters corrode from the inside as the glass lining wears down, and once the steel tank is breached, no amount of tightening will stop it. It can also be a loose drain valve or a fitting that has worked itself loose, which a contractor can check first since that repair is far simpler than a tank replacement. Either way, shut off the water supply to the tank and the power or gas to it until someone can look at it, since a failing tank will only get worse.
- Why won't the pilot light on my water heater stay lit?
- The most common cause is a worn thermocouple, the small sensor that tells the gas valve the pilot is burning. When it wears out, it can't confirm the flame anymore, so the gas valve shuts off even though the pilot lit fine a moment ago. A dirty pilot orifice or a draft pulling the flame sideways can cause the same thing. A contractor can test the thermocouple and replace it if that's the problem, which is usually a quick fix once it's diagnosed.
- Can a tankless water heater be repaired?
- Yes, most tankless water heater problems are repairable. The heat exchanger, the igniter, and the flow sensor are the parts that fail most often, and all of them can be replaced without swapping out the whole unit. Mineral buildup inside the heat exchanger from hard water is also common and can usually be cleared with a descaling flush rather than a replacement. A contractor will need to check the error code the unit is showing to know which part is causing the trouble.