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

Your water heater may still not heat because it lacks power or gas, a thermostat or sensor failed, a heating element burned out, sediment is insulating the element, or a safety control is locking it out. Check the breaker or shutoff. Verify the gas valve and pilot or igniter. Set the thermostat to 120 to 130 F. If it still won’t heat, schedule service. Parrish Services repairs and replaces tank, tankless, and heat pump units, with 24/7 emergency response and next-day installation in Reston and nearby areas.<br/><br/> Updated: 2025-12-31 00:00:00<br/><br/> Need help in Remington, VA? Call (571)-650-1016 or book online. "Installation of new gas water heater went well." — Russ H.