Water Heater Repair in Moscow, ID
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Ten months of heavy use, and winters that push the power out
Your water heater works from September through June here, ten months of the year. That is most of the year spent heating cold groundwater instead of resting, and it wears on the heating element and the thermostat that controls it. When one of those fails, you notice hot water that runs out fast or never gets hot at all.
Latah County has logged 251 winter storms and 25 damaging wind events over the past ten years, and across Idaho about 11% of households lost power for at least 24 hours in 2024. A gas water heater with a standing pilot will keep working through an outage. One with an electric igniter or an electric unit will not come back on until the power does, and most reset themselves once it's restored. If yours does not, the igniter or the control board is worth checking first.
- 25°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 $320 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 tank has likely rusted through from the inside and is releasing water through a crack or seam. Sediment builds up at the bottom of the tank over years and that trapped moisture corrodes the steel from underneath. It can also be a loose drain valve or a fitting that has worked itself loose, which a contractor can check before condemning the tank. Once the tank itself is leaking, the unit needs to be replaced, not patched.
- Why won't the pilot light on my water heater stay lit?
- Most of the time this means the thermocouple has worn out and can no longer tell the gas valve that the pilot is lit, so the valve shuts the gas off. A draft blowing across the pilot, a dirty pilot orifice, or a failing gas valve can also cause it. A licensed contractor can test the thermocouple and replace it if that is the problem, since it is not something to diagnose by guessing. If your water heater has a standing pilot, it draws no electricity at all, so a power outage will not affect it.
- Can a tankless water heater be repaired?
- Yes, most tankless water heater problems are repairable. Common issues are a clogged inlet filter, a buildup of scale on the heat exchanger, an igniter that has failed, or a sensor throwing an error code. A contractor can read the error code the unit displays to find the exact cause rather than replacing parts by trial and error. Replacement only comes into play when the heat exchanger itself has failed.