Freezer Medium Severity
TS Appliance Error Code

Jenn-Air Freezer TS Error: Temp Sensor Failure

What Does Jenn-Air Freezer Error Code TS Mean? Error code TS on a Jenn-Air freezer indicates the temperature sensor has malfunctioned. This sensor tells the control board the current freezer temperature so it can cycle the compressor to maintain the set point — typically 0°F (-18°C). Common Causes The thermistor sensor can fail from age […]

By Michael Turner Lead Appliance Repair Specialist & Technical Writer

Quick Assessment

Answer to continue safely

Is it safe to keep using?

Maybe. If a thermometer confirms the freezer is at 0°F, food is safe. If the temperature is rising, transfer items to another freezer.

Can I reset the code?

Yes. A power cycle may clear a temporary error. A permanently failed sensor will trigger the code again.

When to stop immediately?

Stop if you notice: Freezer temperature is above 10°F, Food is visibly thawing.

Symptoms You May Notice

Food thaws or becomes too frozen

Items in the freezer thaw partially or develop excessive ice crystals due to erratic temperature control.

Display shows incorrect temperature

The temperature reading on the display does not match the actual freezer temperature.

Compressor runs non-stop

The compressor never cycles off because the control cannot determine when the target temperature is reached.

Possible Causes

1

Failed thermistor sensor

The NTC thermistor has drifted out of calibration or has an open/short circuit from age.

Requires Professional
2

Damaged sensor wiring

A wire in the sensor harness has broken or the connector has corroded.

Requires Professional

Safe Checks You Can Do

These checks are safe for homeowners. No disassembly required. Do not remove panels or access internal components.
  1. 1

    Verify with a thermometer

    Place a freezer thermometer inside and compare to the display reading after 2 hours.

    A freezer should maintain 0°F (-18°C). A significant difference confirms a sensor issue.

    Tools required
  2. 2

    Power cycle the unit

    Unplug for 5 minutes and plug back in. Check if the display reading normalizes.

    A temporary sensor glitch may clear with a reset.

When to Call a Professional

Contact a qualified technician if:

  • Sensor resistance does not match spec
  • Wiring shows corrosion or breaks
  • Error returns immediately after reset

Need Professional Help?

Find qualified technicians in your area for proper diagnostics and repair.

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CF SC PO HT PF FN DH CO EV