Water Heater Repair in Iowa City, IA
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Cold winters and winter outages both work against your water heater
Winter nights in Johnson County average 16°F from December through February. The colder the water coming into your tank, the longer the burner or heating element has to run to bring it up to temperature, and that extra runtime wears on the thermostat and the heating element itself.
Power matters too. In Iowa, 15% of households went at least 24 hours without power in 2024. Most water heaters come back on by themselves once power returns, but a standing pilot on a gas unit will not relight on its own, and you are left with no hot water until someone does.
- 16°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?
- The most common reason is that the tank itself has rusted through and is failing. Water heaters have a steel tank with a glass lining inside, and once that lining cracks, the steel underneath corrodes and eventually leaks. A leak can also come from the drain valve at the bottom, or from fittings and connections that have loosened over time, which is worth checking before assuming the tank is done. If the leak is coming from the tank itself, the unit needs to be replaced, since a rusted tank cannot be sealed or repaired.
- Why won't the pilot light on my water heater stay lit?
- A pilot that keeps going out is usually a sign the thermocouple has worn out. The thermocouple is a small sensor that sits in the pilot flame and tells the gas valve the pilot is lit. When it fails, the gas valve shuts off the pilot as a safety measure, even though nothing else is wrong. Other causes include a dirty pilot orifice or a draft reaching the pilot assembly. A licensed contractor can test the thermocouple and replace it if that is the issue.
- Can a tankless water heater be repaired?
- Yes, most tankless water heater problems are repairable. Common issues include a scaled-up heat exchanger, a failed igniter, a blocked vent, or an error code pointing to a sensor problem. Because tankless units rely on precise water flow and exhaust venting to fire correctly, a contractor needs to check both before replacing any part. Regular descaling also prevents many of these problems from starting in the first place.