Water Heater Repair in Lewiston, ID
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Ten months of hot water demand takes its toll
Water heaters in Lewiston work September through June, ten months a year. On winter nights that average 26°F, the water coming into the tank is colder, so the burner or the heating element has to run longer to bring it up to temperature. That extra runtime wears on the parts that do the heating. The gas control valve or the lower heating element gives out sooner than it would somewhere milder.
Nez Perce County has seen 29 winter storms and 37 damaging wind events over the past ten years. Statewide, 11% of households lost power for 24 hours or more in 2024. When the power drops, an electric water heater stops heating until it comes back, and most units start up again on their own once it does. A gas water heater with a standing pilot keeps running through the outage. Either way, a homeowner notices the same thing. Water that was hot yesterday isn't hot today.
- 26°F
- the average winter night, and colder incoming water means longer heating
- 10 months
- September through June, the months homes here need heat
- 11%
- of Idaho 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 Idaho home.
Estimates for a typical Idaho home, compared with an older unit built to the federal minimum, from EIA household energy data and Idaho 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 failing from the inside. Sediment builds up on the bottom of the tank over years, and it traps water against the steel until the metal rusts through. Once a tank is leaking from a crack or a hole in the steel, it needs to be replaced, not repaired. A leak from the bottom can also come from a loose drain valve or a fitting where a water line connects, and those can sometimes be tightened or resealed. A contractor can tell you which one you have by looking at where the water is actually coming from.
- Why won't the pilot light on my water heater stay lit?
- Usually the thermocouple has worn out or is coated in soot and can no longer sense that the pilot is burning, so the gas valve shuts it off. A draft blowing across the pilot can also blow it out, and a partly clogged pilot orifice can make the flame too small to hold. If the pilot lights but won't stay lit once you release the button, the thermocouple is the most likely part to check first. A contractor can test it and replace it if that's the problem.
- Can a tankless water heater be repaired?
- Yes, most tankless water heater problems are repairs, not replacements. The heat exchanger can scale up with mineral deposits and needs flushing, the igniter or flame sensor can fail, and error codes usually point straight to the part causing trouble. A contractor can read the error code and diagnose which part needs attention.