Water Heater Repair in Vallejo, CA
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What Vallejo winters and storms do to your water heater
From November through April your water heater works harder. Incoming water runs colder and nights average 40°F, so the burner or heating element cycles more to keep up. A tank that recovers slowly or runs out of hot water sooner than it used to is often just doing more work than it does in summer.
Solano County has seen 52 damaging wind events over the past ten years, and storms like these knock out power. Most water heaters come back on by themselves once power returns. If yours does not reheat, or a standing pilot has gone out and will not relight, that is worth checking rather than waiting on.
- 40°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 often the tank itself has rusted through and is failing from the inside. Water heaters corrode over years as the glass lining inside the tank wears thin, and once the steel underneath is exposed it rusts and starts to weep. A leak can also come from the drain valve or a fitting on the bottom of the tank, which a contractor can often replace instead of the whole unit. If the tank itself is leaking, it needs to be replaced, since there is no way to patch a rusted tank.
- Why won't the pilot light on my water heater stay lit?
- The most common cause is a worn thermocouple or flame sensor, the small part that tells the gas valve the pilot is burning. When it wears out, it reads the flame as out even when it is lit, so the gas valve shuts off. A dirty pilot orifice or a draft in the area can also blow the flame out. This is a gas control issue, not something to keep relighting on your own, so it is worth having a contractor check the thermocouple and the pilot assembly.
- 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, especially important since these units run water through narrow passages that scale can restrict. Igniters, flow sensors, and venting problems can also be diagnosed and fixed without replacing the unit. A contractor can tell you after looking at it whether the heat exchanger itself has failed, which is the one part that usually means replacement instead of repair.