PO Power outage detected - needs reset

serious

The Whirlpool PO error code on your refrigerator indicates: Power outage detected - needs reset. This typically requires troubleshooting the power system.

Whirlpool Refrigerator Affects 3 models

What Causes Error PO

high likelihood #1

Power surge or brownout

A voltage fluctuation from the utility damaged components or tripped internal protection.

medium likelihood #2

Faulty power cord or outlet

The power cord has internal damage, or the wall outlet isn't providing proper voltage.

medium likelihood #3

Control board power supply section failure

The voltage regulation section of the main board has failed.

medium likelihood #4

Tripped internal fuse or thermal cutoff

An internal safety fuse blew to protect the appliance from damage.

How to Fix Error PO

  1. Step 1: Unplug and wait 10 minutes

    A longer reset time (10 min) allows capacitors to fully discharge and all thermal protections to reset.

  2. Step 2: Check your circuit breaker

    Go to your home's electrical panel and make sure the breaker for this appliance hasn't tripped. Flip it fully off then on.

  3. Step 3: Test the outlet

    Plug something else into the same outlet (a lamp works) to verify the outlet has power. If nothing works, the outlet or circuit has an issue.

  4. Step 4: Try a different outlet

    If possible, plug the appliance into a different outlet on a different circuit to rule out outlet/wiring issues.

  5. Step 5: Inspect the power cord

    Look for cuts, burn marks, bent prongs, or a loose-feeling connection at the back of the appliance. A damaged cord should be replaced.

  6. Step 6: Check internal fuses

    Some appliances have internal fuses (especially microwaves and ovens). With the appliance unplugged, remove the access panel and look for a ceramic or glass fuse. Test continuity — no reading means it's blown.

    ⚠️ Microwave capacitors retain lethal voltage — do not open a microwave without professional training.

Parts You Might Need

If troubleshooting doesn't resolve error PO, you may need to replace one of these parts:

Main Control Board

board $80-$250

Power Cord

other $15-$35

Line Fuse

other $5-$15

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When to Call a Professional

If the outlet itself is the problem, if you suspect a control board failure, or if it's a gas appliance with electrical issues

  • Electrical wiring issues in your home require a licensed electrician
  • Control board power supply failures are complex to diagnose
  • Combining gas + electrical problems creates safety risks

Video Repair Guides

Watch a repair walkthrough for this error code on YouTube:

Search YouTube for "Whirlpool refrigerator error PO fix"

Models Affected

This error code has been reported on the following Whirlpool refrigerator models:

WRF535SWHZWRS325SDHZWRX735SDHZ