Water Heater Repair in Mooresville, NC
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Iredell County winters put your water heater to work
Cold ground water comes into your tank every day from October through April, seven months a year. On nights that average 30°F, the burner or the heating element has to work harder and longer to bring the water up to temperature. That extra run time wears on the thermostat and the heating element in an electric unit, or the burner assembly in a gas one.
Power matters too. A quarter of North Carolina households lost power for at least a day in 2024, and this county has seen 9 winter storms and 105 damaging wind events over the last ten years. When the power drops and comes back, most water heaters just start heating again on their own. If yours does not, or the water is lukewarm after an outage, something inside needs a look.
- 30°F
- the average winter night, and colder incoming water means longer heating
- 7 months
- October through April, 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?
- Most of the time this means the tank itself has rusted through and is failing. Water heaters hold sediment at the bottom, and over years that sediment can eat away at the tank lining from the inside until it cracks. It can also mean a loose drain valve or a failed pressure relief valve, both of which a contractor can replace without touching the tank. Once the tank itself is leaking, though, it needs to be replaced, not repaired.
- 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 shuts the gas off even though the flame is still lit, or fails to sense the flame at all. A dirty pilot orifice or a draft in the area can also blow the flame out. A standing pilot does not run on electricity, so a power outage will not affect it, but the part still wears out over time and a contractor can test and replace it.
- Can a tankless water heater be repaired?
- Yes, most problems with a tankless water heater are repairable. Mineral buildup on the heat exchanger is the most common issue, and it can usually be cleared by flushing the unit. Sensors, igniters and fans can also fail on their own and be replaced individually. A contractor can check the unit's error code, if it has one, to find out which part is causing the trouble.