Water Heater Repair in Oak Ridge, TN
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Anderson County winters put a strain on your water heater
Oak Ridge homes call for heat from October through April, seven months of the year. Groundwater runs cold through those months, and on nights that average 30°F your water heater has to work longer to bring it up to temperature. That extra runtime wears on the heating element and the thermostat that controls it.
The county has also logged 6 winter storms and 42 damaging wind events over the past ten years, and storms like these knock out power. An electric water heater that loses power will come back on by itself once it returns, but a standing pilot on a gas unit will not relight on its own. Either way, a cold snap paired with an outage is when you notice the water running cold.
- 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 often it means the tank itself has rusted through, and water is finding its way out through the metal. That kind of leak won't seal or stop on its own, and once a tank starts leaking it's usually done. It can also be a loose drain valve or a fitting that's failed, which a contractor can check before assuming the tank is bad. Either way, shut off the water supply to the tank and the power or gas to it until someone looks at it.
- 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 flame is lit. When it wears out, it reads the flame as out even when it's burning, so the gas valve shuts off. A dirty or partly blocked pilot tube can cause the same thing. A weak gas valve is possible too, though that's less common and worth having a contractor rule out.
- Can a tankless water heater be repaired?
- Yes, most problems with a tankless water heater are repairable. The igniter, the flow sensor, and the heat exchanger are the parts that most often need attention, and a contractor can replace any of them without replacing the unit. Mineral buildup inside the heat exchanger is another common issue, especially if the unit has never been flushed. Whether repair makes sense for a specific unit is something a contractor can tell you once they've looked at it.