Water Heater Repair in Marion, IL
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Power outages are what catch a water heater off guard here
Winter here brings 14 storms and 88 damaging wind events over the past ten years, and in 2024, 16% of Illinois households lost power for a full day or more. A gas water heater with a standing pilot keeps running through that. One with electronic ignition does not relight on its own, and when the power comes back, a weak igniter or a tripped limit switch is often what shows up first, leaving you with cold water until someone looks at it.
- 27°F
- the average winter night, and colder incoming water means longer heating
- 7 months
- October through April, the months homes here need heat
- 16%
- of Illinois 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 $250 a year off hot water for a typical Illinois home.
Estimates for a typical Illinois home, compared with an older unit built to the federal minimum, from EIA household energy data and Illinois 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, which means the water heater needs to be replaced rather than repaired. But check the easy things first. Water pooling underneath can also come from a loose drain valve at the bottom of the tank, a leaking fitting where pipes connect, or the temperature and pressure relief valve venting because the tank is overheating. A contractor can tell within a few minutes whether it is the tank or something simpler.
- Why won't the pilot light on my water heater stay lit?
- Usually it is a thermocouple that has worn out or gotten out of position. The thermocouple sits in the pilot flame and tells the gas valve the flame is lit. When it fails, the gas valve shuts off the pilot supply as a safety measure even though nothing else is wrong. A dirty pilot orifice or a draft in the area can cause the same problem. This is a common repair and usually doesn't call for a new water heater.
- Can a tankless water heater be repaired?
- Yes, most tankless water heater problems are repairable. A contractor can replace failed parts like the igniter, flow sensor, or heat exchanger, and can flush mineral buildup out of the unit, which is a common cause of reduced hot water or error codes. Whether repair makes sense depends on the unit's age and what's actually gone wrong with it, so a contractor will need to look at the specific unit to say for sure.


