Water Heater Repair in Seneca, SC
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What winter and storms do to your water heater here
Seneca winters are not harsh, but nights average 33°F from December through February, and your water heater runs the whole time the ground and incoming water are cold. That means it works harder to bring water up to temperature, and the heating element or burner cycles more than it does in summer. Over enough winters, that extra work is what wears a heating element thin or fouls a burner.
Oconee County has seen 92 damaging wind events over the past ten years, and statewide, 45% of households went at least 24 hours without power in 2024. A gas water heater with a standing pilot keeps working through an outage. One with electronic ignition will not light until power is back. An electric water heater stops heating until the power returns, and most start back up on their own once it does. If yours does not, that is worth having checked.
- 33°F
- the average winter night, and colder incoming water means longer heating
- 7 months
- October through April, the months homes here need heat
- 45%
- of South 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 South Carolina home.
Estimates for a typical South Carolina home, compared with an older unit built to the federal minimum, from EIA household energy data and South 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?
- Most often the tank itself has rusted through and is leaking from the inside out. Sediment builds up in the bottom of the tank over years, and once it wears through the steel, no fitting or valve fix will stop it. Water pooling underneath can also come from the drain valve, a loose fitting, or the temperature and pressure relief valve doing its job because the tank is overheating. A leak from the tank body means it needs to be replaced, so it is worth having someone check where the water is actually coming from before you assume the worst.
- Why won't the pilot light on my water heater stay lit?
- The most common cause is a worn thermocouple or flame sensor, the part that tells the gas valve the pilot is burning. When it fails, the valve shuts off gas to the pilot as a safety measure even though the flame is fine. A dirty pilot orifice or a draft blowing out the flame can cause the same thing. A standing pilot does not run on electricity, so a power outage will not be the cause here. If the pilot lights but will not stay lit past a few seconds, that points straight to the thermocouple.
- Can a tankless water heater be repaired?
- Yes, most tankless water heater problems are repairable. Mineral buildup on the heat exchanger is the most common issue, and it causes error codes, reduced flow, or the unit shutting off before water gets hot. A clogged inlet filter, a failing igniter, or a faulty flow sensor are also common and fixable without replacing the unit. Whether repair or replacement makes more sense depends on the age of the unit and what a contractor finds once it is opened up.