Water Heater Repair in Los Angeles, CA
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What power loss in Los Angeles County does to a water heater
Winter nights here average 41°F from December through February, cold enough that a water heater runs more cycles to hold its temperature than it does the rest of the year. That extra work falls on the burner or the heating element, the parts that wear with use.
The bigger issue is power. The county has logged 112 damaging wind events over the past ten years, and statewide, 17% of households went at least 24 hours without power in 2024. An electric water heater usually comes back on by itself once power returns. A gas unit often will not. Its pilot or ignition control needs someone to check it, and that shows up as cold water at the tap when the household expects hot.
- 41°F
- the average winter night, and colder incoming water means longer heating
- 6 months
- November through April, 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 that means replacement, not repair. Water heaters have a steel tank with a glass lining inside, and once that lining cracks the steel underneath starts to corrode. Once a leak is coming from the tank, it will not seal or patch. It's also worth checking that the leak isn't coming from a fitting, the drain valve, or the temperature and pressure relief valve instead, since those can sometimes be replaced without replacing the whole tank.
- Why won't the pilot light on my water heater stay lit?
- A pilot that keeps going out is usually the thermocouple, the small sensor that sits in the pilot flame and tells the gas valve the flame is lit. When it wears out or sits out of position, it reads no flame even when there is one, and the gas valve shuts off. A dirty or partly blocked pilot orifice can cause the same thing. A standing pilot runs on the gas alone, so this isn't a power problem, it's the sensor or the flame path itself that needs attention from a licensed plumber or gas contractor.
- Can a tankless water heater be repaired?
- Yes, most tankless water heater problems are repairable. The heat exchanger, the igniter, the flow sensor, and the venting can all be serviced or replaced without swapping out the whole unit. Mineral buildup on the heat exchanger is one of the most common issues, and it's often cleared with a descaling flush rather than a replacement. A licensed contractor can tell you whether what's wrong is a repair or, in the case of a heat exchanger that has actually failed, worth replacing instead.