State Reduced Effective Capacity

State water heater: hot water runs out faster than it used to.

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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

Sediment buildup in tank, Broken or missing dip tube, One element not heating (electric), Increased household demand

How to Fix / Troubleshooting

Safety: Turn off power or gas and allow water to cool before draining.

  • Flush tank: Connect a hose to the drain valve and flush until water runs clear. This can restore some capacity.
  • Inspect dip tube: Shut off cold supply, remove the cold inlet nipple, and check the plastic dip tube. Replace if broken or deteriorated.
  • Check elements (electric): Verify both elements are operating.
  • Evaluate sizing: If demand has increased, consider upsizing the heater or adding a second unit.
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Repair Difficulty

Medium 3/5

Required Part

Dip Tube
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