Refrigerator Medium Severity
LO Appliance Error Code

Viking Refrigerator LO Error: Low temperature alarm

What Viking Refrigerator LO Code Means The LO alarm on your Viking refrigerator indicates temperatures have dropped below the programmed threshold. While less urgent than a high-temp alarm, it can damage fresh produce and dairy if left unaddressed. Common Causes Usually the thermostat has been set too low, or a faulty temperature sensor is causing […]

Quick Assessment

Answer to continue safely

Is it safe to keep using?

Yes. The refrigerator is safe to use. Adjust the temperature setting and monitor. Items may freeze if left unchecked, but there is no safety hazard.

Can I reset the code?

Yes. Adjust the temperature setting to the recommended level and press the alarm reset button. The alarm should clear once temperature normalizes.

When to stop immediately?

Stop if you notice: If adjusting the thermostat has no effect on temperature, If the fresh food section drops below freezing despite correct settings.

Symptoms You May Notice

LO displayed on panel

Control panel shows LO temperature warning.

Food freezing in refrigerator

Fresh produce, beverages, or dairy items are freezing in the fresh food compartment.

Ice crystals on items

Visible frost or ice forming on food items that should not be frozen.

Possible Causes

1

Thermostat set too low

Temperature setting accidentally lowered.

DIY Possible
2

Faulty temperature sensor

The thermistor reading incorrectly low causes overcooling.

Requires Professional
3

Damper control stuck open

The air damper between freezer and fresh food section is stuck in the open position.

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

    Check temperature setting

    Verify the fresh food compartment is set to 37°F (3°C). Adjust if needed.

    Viking recommends 37°F for the fresh food section.

  2. 2

    Check air vents

    Make sure food items are not blocking the air vents between freezer and refrigerator sections.

    Blocked vents can cause uneven cooling.

When to Call a Professional

Contact a qualified technician if:

  • Temperature sensor reads incorrectly
  • Damper control does not respond to thermostat changes
  • Overcooling persists after thermostat adjustment

Need Professional Help?

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

Refrigerator Repair Service Schedule Appointment

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