Water Heater Repair in St. George, UT
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St. George winters push your water heater harder than you'd think
Washington County needs heat eight months a year, October through May, and winter nights average 28°F from December through February. Cold water coming into the tank means the burner or element runs longer to get it to temperature, and that extra runtime wears on the thermostat and heating element in an electric unit, or the burner assembly in a gas one.
Storms are part of the picture too. The county has logged 40 winter storms and 60 damaging wind events over the past ten years, and statewide, 7% of households lost power for 24 hours or more in 2024. When the power goes out, an electric water heater stops heating until it's back, and most units come back on by themselves once it is. If yours doesn't, or the water never gets hot again, something inside needs a look.
- 28°F
- the average winter night, and colder incoming water means longer heating
- 8 months
- October through May, the months homes here need heat
- 7%
- of Utah 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 $80 a year off hot water for a typical Utah home.
Estimates for a typical Utah home, compared with an older unit built to the federal minimum, from EIA household energy data and Utah 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 that isn't something that gets patched. Water heaters corrode from the inside over years, and once the steel gives way at the bottom seam, the tank has to be replaced. A puddle can also come from a loose drain valve or a failed temperature and pressure relief valve, and both of those a contractor can check before assuming the tank is done. Shut off the water and power or gas to the unit until someone can look at it, since a full tank of water sitting on a failing bottom will only get worse.
- Why won't the pilot light on my water heater stay lit?
- The usual cause is a worn thermocouple, the small sensor that tells the gas valve the pilot is burning. When it wears out it can't confirm the flame anymore, so the valve shuts off the gas as a safety measure. A dirty pilot orifice or a draft blowing across the flame can cause the same thing. A contractor can test the thermocouple and clean or replace the parts that need it, and since your water heater has to run through the winter here, it's worth getting sorted rather than relighting it over and over.
- Can a tankless water heater be repaired?
- Yes, most problems with a tankless water heater are repairable. A failed igniter, a clogged inlet filter, mineral buildup on the heat exchanger, or a bad flow sensor are all parts a contractor can replace or clean without swapping the whole unit. Hard water buildup is the most common thing that causes tankless units to lose performance or throw an error code over time. A contractor can flush the unit and diagnose which part is causing the trouble, and only recommend full replacement if the heat exchanger itself has failed.