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Source-backed error-code guide

Reviewed

Whirlpool Refrigerator PO Error Code

Whirlpool says PO appears after a power outage when freezer temperature has risen to 18°F (-8°C) or higher. The alert continues until it is acknowledged on the control.

Applies to Whirlpool full-size refrigerator

What the appliance detected

Detected condition

The freezer temperature rose to a level that triggered a power-outage alert.

What may contribute

Possible causes

  • A household power outage or interrupted refrigerator power.
  • Freezer temperature rising during the interruption.
  • Food may have warmed enough to require food-safety judgment.

Start conservatively

Safe preliminary checks

Work in order and stop whenever a step is not supported by the documentation for your model.

  1. Record the alert and model

    • Photograph or write down PO before clearing it.
    • Confirm the refrigerator model and owner manual for the exact control labels.

  2. Acknowledge the documented alert

    • Use the control action documented for the model to confirm or acknowledge the power-outage message.
    • Do not open panels or bypass controls.

  3. Check food and temperature safety

    • Check frozen food for signs of thawing.
    • Keep doors closed as much as practical while temperatures recover.

Actions not recommended

  • Do not assume PO identifies a failed cooling component.
  • Do not access compressor, sealed-system, wiring, or control components.
  • Do not rely on questionable food if temperature history is uncertain.

When to stop and request service

  • PO returns without a known power interruption.
  • The refrigerator does not cool normally after power is restored.
  • Food safety is uncertain or temperatures remain unsafe.

Documented source

Official information reviewed

Our summary is based on manufacturer support material and stays within the limits of that material.

Source reviewed by Appliance Help HQ: August 17, 2026.

Appliance Help HQ is an independent informational site and is not affiliated with or endorsed by Whirlpool.

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