Water Heater Repair in Fresno, CA
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Fresno County's water heaters work through power outages and cold snaps
Fresno County winters stay cool but not brutal, averaging 32°F on winter nights from December through February. Your water heater's tank still has to work harder those months, holding its temperature against the colder water coming in.
Power is the bigger issue here. Across California, 17% of households lost power for 24 hours or more in 2024, and the county has logged 189 winter storms and 179 damaging wind events over the last ten years. Most gas water heaters need power for the igniter and control board, so a storm outage can leave you with a full tank and no hot water even though nothing inside it broke. When the power comes back, the unit should relight on its own. If it does not, something in the ignition system needs a look.
- 32°F
- the average winter night, and colder incoming water means longer heating
- 8 months
- October through May, the months homes here need heat
- 17%
- of California 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 $110 a year off hot water for a typical California home.
Estimates for a typical California home, compared with an older unit built to the federal minimum, from EIA household energy data and California 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 is starting to fail. Water heaters corrode from the inside over years, and once the steel gives way, no seal or fitting will stop it. It can also be a loose drain valve or a fitting that's just dripping down the side and pooling at the bottom, which is a much easier fix. A contractor can tell within a few minutes which one you're dealing with, but if the tank itself is leaking, it needs to be replaced, not patched.
- Why won't the pilot light on my water heater stay lit?
- The most common cause is a worn thermocouple, the small sensor that sits in the pilot flame and tells the gas valve it's safe to stay open. When it wears out, it can't hold that signal and the valve shuts the gas off, even though the flame was burning fine. A dirty pilot orifice or a draft blowing out the flame can cause the same thing. This is a repair a licensed contractor should handle, since it involves the gas valve.
- Can a tankless water heater be repaired?
- Yes, most tankless problems are repairs, not replacements. Error codes pointing to a failed igniter, a clogged flow sensor, or scale buildup on the heat exchanger can usually be fixed by servicing or replacing that one part. Because these units run on a circuit board with sensors, a contractor licensed in California needs to diagnose the actual fault before ordering parts. Full replacement is only needed when the heat exchanger itself has cracked or corroded through.