Water Heater Repair in Lebanon, TN
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Cold water and outages both put a water heater to work in Lebanon
Winter nights here average 31°F from December through February, and that means colder water coming into the tank all through the season. The burner or heating element has to run longer to make up that difference, and that extra run time is what wears out a thermostat or an element before its time.
Power doesn't always stay on through a storm. In Tennessee, 20% of households went at least 24 hours without it in 2024, and Wilson County has seen 11 winter storms and 260 damaging wind events over the past ten years. A gas water heater with a standing pilot will keep making hot water through an outage. One with an electric igniter won't relight on its own. Most electric water heaters come back on by themselves once power returns, so if yours doesn't, that's worth a look.
- 31°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?
- The most common cause is the tank itself failing from the inside. Sediment builds up over the years and corrodes the steel, and once the tank is breached the water finds the lowest point and drips from underneath. A leak can also come from a loose drain valve or a fitting where water lines connect at the bottom, and those can sometimes be tightened or replaced. If the tank itself is the source, it needs to be replaced, since a rusted-through tank cannot be sealed or patched.
- Why won't the pilot light on my water heater stay lit?
- Most often the thermocouple has worn out. That's the small sensor that sits in the pilot flame and tells the gas valve it's safe to keep gas flowing. Once it weakens, it can't hold that signal, so the gas valve shuts off and the pilot goes out. A dirty pilot orifice or a draft near the burner can cause the same thing, so a contractor will check both before replacing any part.
- Can a tankless water heater be repaired?
- Yes, most problems with a tankless unit are repairable. Mineral buildup on the heat exchanger, a failed igniter, or a faulty flow sensor are common issues, and each can be cleaned or replaced without swapping out the whole unit. Tankless units also run diagnostic codes when something is wrong, which points a contractor straight to the part at fault. Whether repair or replacement makes more sense depends on the age of the unit and what's actually failing, which a contractor can tell you after looking at it.