Water Heater Repair in Ottumwa, IA
Tell us what your water heater is doing, and a licensed contractor who covers Wapello County will get in touch.
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What winter here does to your water heater
Your water heater works harder from October through May, close to eight months a year. Cold groundwater comes into the tank already near freezing on the nights that average 18°F here, and the unit has to work longer to bring it up to temperature. That extra runtime wears on the heating element in an electric tank and the burner assembly in a gas one.
Wapello County has seen 17 winter storms and 69 damaging wind events over the past ten years, and storms like that knock out power. Statewide, 15% of Iowa households lost power for 24 hours or more in 2024. An electric water heater stops heating the moment power drops, and when it comes back on, most units start back up on their own. A gas water heater with a standing pilot keeps running through an outage, but one with an electronic ignition will not relight itself and needs someone to start it again.
- 18°F
- the average winter night, and colder incoming water means longer heating
- 8 months
- October through May, the months homes here need heat
- 15%
- of Iowa 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 $50 a year off hot water for a typical Iowa home.
Estimates for a typical Iowa home, compared with an older unit built to the federal minimum, from EIA household energy data and Iowa 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 once that happens the tank can't be patched or sealed, it needs to be replaced. Sediment builds up on the bottom of the tank over years and corrodes the metal from the inside until it gives way. A loose drain valve or a fitting can also leak and look like a tank failure, so it's worth having someone check the valve before assuming the worst. If the leak is coming from the top or from a fitting rather than the tank body, that part can often be repaired instead.
- 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 gas to the pilot even though the flame is still lit, and the fix is to replace it. A dirty pilot orifice or a draft in the area can also blow the flame out or keep it from sensing correctly. This is a gas appliance, so if you smell gas or the pilot won't hold after a couple of tries, get a contractor to look at it rather than keep relighting it.
- Can a tankless water heater be repaired?
- Yes, most problems on a tankless unit are repairable. Mineral buildup on the heat exchanger is the most common issue, especially if the unit has never been flushed, and that can be cleaned out. Igniter failures, sensor faults, and venting problems can also be diagnosed and fixed without replacing the whole unit. A contractor can check the error code the unit is showing and tell you what's actually wrong before any work starts.