Ice Maker Medium Severity
LO Appliance Error Code

Jenn-Air Ice Maker LO Error: Low Temp / Freezing

What Does Jenn-Air Ice Maker Error Code LO Mean? The LO alarm on a Jenn-Air ice maker means the unit is overcooling. While an ice maker needs to be cold, going too far below the operating range causes the water supply lines and distribution system to freeze solid, halting ice production. Common Causes A faulty […]

By Sarah Mitchell Appliance Safety Researcher & Technical Editor

Quick Assessment

Answer to continue safely

Is it safe to keep using?

No. Frozen water lines prevent ice production and can cause component damage. Thaw the unit before attempting to use.

Can I reset the code?

Yes. Thawing and power cycling resets the system. If the sensor or thermostat is faulty, overcooling will recur.

When to stop immediately?

Stop if you notice: Water lines freeze again within 24 hours of thawing, Compressor runs non-stop at full cooling.

Symptoms You May Notice

Ice production stops

New ice is not being produced even though the unit is running.

Water lines frozen inside unit

The internal water distribution system has frozen, blocking water flow to the ice mold.

Thick frost on evaporator

Excessive frost visible on internal cooling components.

Possible Causes

1

Temperature sensor failure

The sensor is reading a falsely warm temperature, causing the unit to overcool.

Requires Professional
2

Thermostat malfunction

The thermostat is stuck in the cooling position and does not cycle off.

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

    Turn off and thaw

    Unplug the unit for 4-6 hours to thaw any frozen water lines.

    Place towels around the base to catch meltwater.

  2. 2

    Adjust temperature setting

    After thawing, restart and set the thermostat slightly warmer if adjustable.

    Some Jenn-Air models have a thermostat dial accessible inside the unit.

When to Call a Professional

Contact a qualified technician if:

  • Sensor reads incorrectly at known temperature
  • Thermostat does not cycle off
  • Control board keeps compressor running

Need Professional Help?

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

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HA CL PF E1 DR LP HP FL HI