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Why Is My Water Heater Not Heating Up Despite Resetting the Button?

If the reset button won’t restore hot water, common causes include a failed heating element or thermostat (electric), a tripped breaker, or a gas supply/ignition issue (gas). Sediment buildup can overheat the tank and trip safety controls. A failed high‑limit switch (ECO) or loose wiring can also stop heating. Quick checks:

  • Verify breaker and unit power are on.
  • Confirm gas valve is open and pilot/igniter works.
  • Check temperature setting and look for leaks. We provide 24/7 water heater service in Loveland and Greeley.
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Updated: 2026-2-20

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