Water Heater Repair in Decatur, IL
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What Decatur winters do to a water heater
Your water heater works harder from October through April, when the water coming into the tank is coldest. On nights that average 22°F, the tank runs more often to hold its temperature, and that extra cycling wears on the heating element or burner assembly over time.
Macon County has seen 109 damaging wind events and 10 winter storms over the past ten years, and across Illinois 16% of households lost power for 24 hours or more in 2024. If your water heater is electric, an outage means no hot water until power is back. If it runs on gas with an electronic igniter, the same is true, though a standing pilot will keep working through the outage.
- 22°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 $60 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 cause is the tank itself has rusted through from the inside and is failing. Sediment builds up at the bottom of the tank over years, and it traps moisture against the steel until it corrodes and opens a hole. A loose drain valve or a fitting can also leak and look like the tank is the problem, so a contractor will check those first since they can be fixed. If the tank itself is leaking, it needs to be replaced, not repaired.
- Why won't the pilot light on my water heater stay lit?
- Most of the time this means the thermocouple has worn out and can no longer tell the gas valve that the pilot is lit, so the valve shuts the gas off. A dirty or clogged pilot orifice can cause the same problem by starving the flame. Wind or a draft reaching the pilot from a loose vent can also blow it out. A contractor can test the thermocouple's output and replace it, which is a common repair on tank water heaters with a standing pilot.
- Can a tankless water heater be repaired?
- Yes, most tankless water heater problems are repairable. Mineral buildup on the heat exchanger is common and is cleared with a descaling flush. Igniter failures, flow sensor faults, and error codes pointing to a specific part can usually be diagnosed and fixed without replacing the whole unit. A contractor can pull the error code and tell you whether it is a repair or whether the unit has reached the point of needing replacement.