What Should I Do If My Water Heater Is Not Producing Hot Water?

If your water heater is not producing hot water, first confirm power or gas supply and basic settings, then schedule service if those checks don’t restore heat. The most common cause is a tripped electrical breaker or an extinguished pilot light; failed heating elements, ignition faults, or heavy mineral scale can also stop heating. Loss of hot water is common and usually repairable, while severe corrosion or a tank body leak often points to replacement. Our licensed team serves homes around Dayton with code-compliant diagnostics, repairs, and installations, including 24/7 emergency response when you need it most. On tankless systems, scale can fool flow sensors and block ignition until the unit is flushed.

Try these quick checks before calling:

• Electric: reset the breaker and on-unit switch; press the red reset on the upper thermostat.
• Gas: ensure the gas valve is on; relight the pilot per the unit label; if you smell gas, stop and call immediately.
• Settings: verify the temperature isn’t turned down and vacation/safe mode is off.
• Tankless: note error codes, clean the inlet screen, and power-cycle the unit.

If a leak is active, turn off the cold-water inlet and the unit’s power or gas before seeking professional help. <br/> Updated: 2026-04-04 <br/> Need help in Dayton, IN? Call (765) 262-5364 or book online. “He fixed our water heater leak and was done in 15 minutes! He was super polite and courteous.” — Sharon H.