Water Heater Repair in Prescott Valley, AZ
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Winter nights here are hard on a water heater
Yavapai County water heaters work through cold winter nights that average 31°F from December through February. The colder the water coming in, the longer the burner or the heating element has to run to bring a tank up to temperature. That extra runtime wears on the parts that do the work, the thermocouple, the heating element, the gas valve.
Power matters too. Arizona saw 7% of households lose power for 24 hours or more in 2024, and the county has logged 44 winter storms and 94 damaging wind events over the past ten years. A gas water heater with a standing pilot keeps running through an outage, but one with electronic ignition will not light again until the power is back and someone resets it. If your water heater is electric, it stops heating the moment the power goes out and stays cold until it returns.
- 31°F
- the average winter night, and colder incoming water means longer heating
- 7 months
- October through April, the months homes here need heat
- 7%
- of Arizona 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 $80 a year off hot water for a typical Arizona home.
Estimates for a typical Arizona home, compared with an older unit built to the federal minimum, from EIA household energy data and Arizona 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 reason is that the tank itself has rusted through and is failing. Sediment builds up in the bottom of the tank over years of use, and it corrodes the steel from the inside until a crack or pinhole opens up. Once a tank is leaking this way it needs to be replaced, not patched, since the damage is inside the metal. A leak from the bottom can also come from a loose drain valve or a fitting nearby, so it is worth having a contractor check before assuming the tank is done.
- 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 sense that the flame is lit, so it shuts the gas off. A dirty pilot orifice or a draft blowing across the flame can cause the same thing. It could also be a sign the gas valve itself is failing. A contractor can test the thermocouple and the valve to find out which one it is, since guessing wrong means paying for a part you did not need.
- Can a tankless water heater be repaired?
- Yes, most problems with a tankless water heater are repairable. A failing igniter, a bad flow sensor, or mineral buildup in the heat exchanger are common issues, and a contractor can replace or clean these without swapping out the whole unit. Tankless units run water through pipes coated with minerals over time, which is why flushing the system is often part of keeping one working. If the heat exchanger itself has cracked, that is a bigger repair and a contractor can tell you whether it makes more sense to fix it or replace the unit.