American Water Heaters Complete Loss of Heating

Water heater produces no hot water at all (gas or electric models).

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Tripped high limit (ECO), No power supply (electric) or no gas supply (gas), Failed upper heating element (electric), Failed gas control valve (gas)

How to Fix / Troubleshooting

Safety: For electric units, turn off the breaker. For gas units, turn gas control to OFF before inspection.

  • 1. Check power or gas: Verify breaker is on and outlet has power (electric). Verify gas shutoff valve is open (gas).
  • 2. Reset ECO: Press the red reset button on the upper thermostat (electric) or follow reset procedure on gas control.
  • 3. Test upper element (electric): Measure resistance and replace if open.
  • 4. For gas units: Confirm pilot or ignition sequence. If all else is normal but no burner operation, the gas control valve may need replacement.
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Repair Difficulty

Medium 3/5

Required Part

Upper Heating Element or Gas Control Valve
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