JennAir Insufficient Heating / Temperature Inaccuracy

JennAir oven takes excessively long to preheat or never reaches set temperature

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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

Weak bake element, Faulty oven temperature sensor, Poor door gasket seal, Miscalibrated control board

How to Fix / Troubleshooting

Safety: Turn off power before testing components.

  • Check elements: Confirm both bake and broil elements glow red during preheat. If one does not, test and replace as needed.
  • Test sensor: Measure oven sensor resistance at room temperature (around 1050–1100 ohms). Replace if out of spec.
  • Inspect door gasket: Check the door seal for gaps, tears, or flattening. Replace if it does not seal evenly all around.
  • Calibrate temperature: Use an oven thermometer to compare actual temperature to set temperature. Many JennAir models allow temperature offset adjustment in the settings menu (e.g., +/- 30°F).
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Repair Difficulty

Medium 3/5

Required Part

Oven Door Gasket
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