Water Heater Repair in Wilmington, NC
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What New Hanover County does to a water heater
Wilmington doesn't get hard winters, but water heaters here still work through five months of colder incoming water, November through March, with nights averaging 36°F in the coart of winter. A tank built to heat water from a warmer starting point runs longer to make up the difference, and that extra runtime wears on the heating element and the thermostat controlling it.
The bigger risk is the power going out from behind it. A quarter of North Carolina households lost power for 24 hours or more in 2024, and the county has logged 59 damaging wind events and 6 winter storms over the past ten years. Most electric water heaters come back on by themselves once power returns, but a gas unit with an electronic ignition may not relight on its own, and you'll notice when the hot water doesn't come back with the lights.
- 36°F
- the average winter night, and colder incoming water means longer heating
- 5 months
- November through March, the months homes here need heat
- 25%
- of North Carolina 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 $300 a year off hot water for a typical North Carolina home.
Estimates for a typical North Carolina home, compared with an older unit built to the federal minimum, from EIA household energy data and North Carolina 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 reason is that the tank itself has rusted through and is failing from the inside. Water heaters hold sediment at the bottom of the tank over the years, and once the steel corrodes, water finds its way out and there is no patching it. A leak can also come from the drain valve or a fitting above the tank dripping down, which looks the same but is a much simpler fix. A contractor can tell the difference by drying the area and watching where the water actually appears first.
- Why won't the pilot light on my water heater stay lit?
- Usually the thermocouple has worn out and can no longer sense that the pilot is burning, so the gas valve shuts it off. A weak or dirty pilot flame can cause the same problem, and so can a draft reaching the pilot from a vent or nearby door. If the thermocouple is the cause, replacing it usually solves it. This only applies to a standing pilot model. Newer gas water heaters use an electronic igniter instead, and a different part is at fault if the flame won't hold.
- Can a tankless water heater be repaired?
- Yes, most problems with a tankless water heater are repairable without replacing the unit. The igniter, the flow sensor, and the heat exchanger are the parts that most often need attention, and a tankless unit that stops firing or runs cold in the middle of a shower is usually one of these rather than the whole system failing. Mineral buildup inside the heat exchanger is common too, especially if the unit has never been flushed. A contractor can run the error code the unit displays to narrow it down before opening anything up.