Kenmore Insufficient Heating Capacity or Element Underperformance

Kenmore water heater takes a very long time to recover after hot water use

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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

One element not working (electric), incorrect element wattage installed, sediment covering elements, low gas input (gas models), partially closed gas or water valves

How to Fix / Troubleshooting

Safety: Turn OFF power or gas before testing components.

  • Check supply valves: Ensure the cold water supply valve is fully open and, on gas models, the gas shutoff valve is fully open.
  • Verify element operation: On electric models, test both upper and lower elements and thermostats for proper function. Replace any failed heating element or thermostat.
  • Confirm element wattage: Compare installed element wattage to the rating plate. Replace with correct wattage elements if undersized.
  • Flush sediment: Drain and flush the tank to remove sediment that can insulate elements or burner surfaces.
  • Gas input check: On gas models, have a technician verify manifold gas pressure and burner performance.
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Repair Difficulty

Medium 3/5
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