The Whirlpool Refrigerator PO Code means Power Outage. On supported models, it appears after electrical power was interrupted and the freezer temperature rose to approximately 18°F or -8°C or higher. The display may flash “PO,” sound an alarm and temporarily disable other dispenser or control-panel functions until you acknowledge the warning.
Start by confirming that the refrigerator has power and that cooling has resumed. On models showing “Confirm,” press Measured Fill once to acknowledge the alert. Other Whirlpool control panels may show the words “Power Outage” and use a different acknowledgment method.
Do not keep using the appliance if the outlet is hot, damaged, sparking or repeatedly tripping the circuit breaker. You should also check whether food became unsafe while power was unavailable.
Quick Answer
| Item | Details |
|---|---|
| Code | PO, sometimes mistaken for P0 |
| Meaning | Power Outage |
| Brand | Whirlpool |
| Appliance | Selected Whirlpool refrigerators |
| Main trigger | Interrupted power and a rise in freezer temperature |
| First safe action | Acknowledge the alert and confirm cooling is on |
| Common acknowledgment button | Measured Fill on selected models |
| Repair difficulty | Usually no repair after a normal household outage |
| Can the refrigerator still be used? | Yes, if cooling resumes and there is no electrical damage |
| Main concern | Food may have warmed during the outage |
| Professional help needed | If PO returns repeatedly, cooling fails or the electrical supply is unstable |
What Does PO Mean on a Whirlpool Refrigerator?
PO stands for Power Outage. It is more accurately described as a warning or status alert than a component-specific fault code.
On Whirlpool refrigerators that use this system, the power-outage indicator records that:
- Electrical power to the refrigerator was interrupted.
- The freezer temperature rose to about 18°F or -8°C or higher.
- The user needs to acknowledge the warning and assess the condition of stored food.
The control may flash PO and sound an alert three times. On selected dispenser panels, “Confirm” also flashes until the user presses the Measured Fill control. Other control and dispenser functions may remain unavailable until the alert is acknowledged.
Is it PO or P0?
Whirlpool documents the warning as PO, with the letter O.
On a segmented digital display, the letter O can look like the number zero. That is why owners sometimes search for:
- Whirlpool P0 code
- Whirlpool refrigerator P zero error
- Whirlpool fridge P0 warning
These searches normally refer to the same PO Power Outage message.
How to Clear the Whirlpool Refrigerator PO Code
The correct method depends on the refrigerator’s control-panel design.
Models with a Measured Fill button
When the display flashes PO and “Confirm” appears:
- Look for Measured Fill beneath or near “Confirm.”
- Press Measured Fill once.
- Wait for the PO message to disappear.
- Confirm that the display returns to its normal home screen.
- Check that cooling is switched on.
Whirlpool’s PO support instructions say to press Measured Fill to acknowledge the outage. They do not give a universal instruction to hold that button for three seconds.
Do not confuse this procedure with other Whirlpool control combinations. Holding Measured Fill with another button can change a different setting on some models.
Models showing “Power Outage” in full
Some newer Whirlpool panels display the complete words Power Outage rather than PO.
Whirlpool advises touching a control button to stop the alarm and touching a button again to remove the Power Outage icon. The exact control can vary, so follow the message shown on your display or check the model’s owner’s manual.
When neither method works
Do not repeatedly press random control combinations. Locate the refrigerator’s model number and check its specific manual.
Whirlpool provides a manual-search service that uses the complete model number. This is safer than following instructions written for a similar-looking refrigerator.
What to Check After Clearing the PO Alert
Clearing PO only acknowledges the warning. It does not confirm that cooling has returned to normal.
1. Make sure cooling is turned on
Check the display for messages such as:
- Cooling Off
- Showroom
- Demo
- Refrigerator Off
Some Whirlpool refrigerators may need to be manually turned back on after a power outage or power surge. Because the button combination varies, use the owner’s manual before changing this setting.
2. Listen for normal operation
After power returns, you may hear:
- Fans beginning to run
- The compressor starting
- Water-valve or ice-maker activity
- Normal clicking as controls restart
A short delay before the compressor starts does not automatically mean the refrigerator has failed. Avoid repeatedly unplugging and reconnecting the appliance.
3. Keep the doors closed
Opening the refrigerator and freezer repeatedly releases cold air and slows temperature recovery.
Check essential items quickly, then leave the doors closed while the appliance cools.
4. Check actual temperatures
A refrigerator thermometer provides more useful information than the control-panel setting alone.
Normal food-storage targets are:
- Refrigerator: 40°F or 4°C or below
- Freezer: 0°F or -18°C or below
FoodSafety.gov recommends appliance thermometers because they help determine whether food stayed within a safe temperature range during an outage.
Common Reasons the PO Alert Appears
A utility power outage
A local electricity failure is the most obvious cause. PO may appear only after power is restored and the refrigerator detects that the freezer warmed beyond the alert threshold.
A brief interruption or brownout
The outage may have lasted only a few seconds or minutes. Lights, clocks and other appliances may reset even when the interruption was too brief for you to notice.
A tripped breaker or blown fuse
Check the refrigerator’s household breaker or fuse only if you can do so safely.
Reset a tripped breaker once. If it trips again, do not continue resetting it. Repeated trips may indicate an appliance or household wiring problem that needs professional diagnosis.
A loose power plug
Confirm that the plug is fully seated in the outlet. Do not touch it if the outlet, plug or cord is hot, scorched, melted or damaged.
North American Whirlpool refrigerator guidance specifies a grounded three-prong supply and warns against unsafe power arrangements. Electrical requirements differ in other countries, so always follow the rating plate and local manual for your refrigerator.
A switched or unreliable outlet
An outlet controlled by a wall switch can interrupt refrigerator power accidentally. A loose or worn receptacle may also create intermittent power loss.
A qualified electrician should inspect an outlet that:
- Feels loose
- Shows heat or discolouration
- Makes buzzing sounds
- Produces sparks
- Stops and starts supplying power
- Causes the breaker to trip repeatedly
The refrigerator was unplugged
Cleaning, moving the refrigerator or working near the outlet may briefly disconnect power. PO can be a normal result when the appliance is plugged back in.
How to Reset a Whirlpool Refrigerator After PO
Acknowledging the PO alert should be tried before performing a full power reset.
A power cycle may help when the control panel remains frozen or unresponsive.
Safe power-reset procedure
- Confirm that no one is working on the household electrical circuit.
- Unplug the refrigerator, or switch off its dedicated breaker if the plug cannot be reached safely.
- Leave the power off for the period specified in the owner’s manual.
- Restore power.
- Acknowledge any new Power Outage message.
- Confirm that cooling is turned on.
- Test the control panel.
Whirlpool specifies a one-minute power interruption on some French-door refrigerator support pages. Its side-by-side guidance may specify five to ten minutes. This difference is why a single reset time should not be presented as universal for every Whirlpool refrigerator.
Do not remove electrical covers or test internal voltage.
What to Do if the PO Code Will Not Clear
Use this order:
Step 1: Confirm the correct button
Press Measured Fill only when the display identifies it as the Confirm control. On models displaying the words Power Outage, follow the panel prompt or manual instead.
Step 2: Check for Control Lock
A locked control panel may ignore normal commands. Look for a padlock symbol or Control Lock indicator.
Use the model-specific unlock procedure. Do not guess a button combination because holding the wrong keys may change cooling or dispenser settings.
Step 3: Perform one power cycle
Disconnect power using the model-appropriate reset period, restore power and try acknowledging PO again.
Step 4: Confirm cooling is active
Look for Cooling Off or a similar message. A successfully cleared PO alert is not enough if the refrigerator remains in a non-cooling mode.
Step 5: Arrange service
Service is appropriate when:
- The display remains frozen
- Buttons do not respond
- PO immediately returns
- The refrigerator repeatedly restarts
- Cooling does not resume
- The control panel becomes blank
- Another fault code appears
Why the PO Code Keeps Coming Back
A PO alert that appears once after a known outage is normally understandable. Repeated PO warnings without a known household outage need more investigation.
Possible causes include:
- Momentary utility interruptions
- An unstable outlet
- A loose plug
- A tripping circuit breaker
- A damaged power cord
- Intermittent internal power loss
- A control or user-interface problem
PO alone does not prove which part has failed.
A technician may need to examine the electrical supply, power connections, electronic controls and cooling operation. Parts should not be ordered based only on the PO display.
Refrigerator problem or household electrical problem?
An electrician is usually the better first contact when:
- The breaker repeatedly trips
- The outlet is damaged or hot
- Other appliances lose power at the same time
- Lights dim or flicker when the refrigerator starts
- The receptacle does not hold the plug securely
An appliance technician is more appropriate when:
- The outlet supply is confirmed stable
- Only the refrigerator restarts
- The control panel repeatedly loses power
- Cooling stops while the lights remain on
- PO returns with other appliance symptoms
Does PO Mean the Control Board Is Bad?
No. The PO message by itself does not confirm a failed control board.
It also does not prove failure of the:
- Compressor
- Temperature sensor
- Evaporator fan
- Condenser fan
- User interface
- Power-supply board
- Start device
These components may be considered only when the refrigerator has additional symptoms and testing supports the diagnosis.
Replacing an electronic board without verifying the power supply and model-specific fault history can waste money and leave the actual problem unresolved.
Is It Safe to Use a Whirlpool Refrigerator Showing PO?
The appliance may continue to be used when:
- The alert clears normally
- Cooling is switched on
- Temperatures return to safe levels
- The cord and outlet show no damage
- The breaker remains stable
- The refrigerator operates without repeated restarts
Stop using the refrigerator and disconnect it when safe to do so if you notice:
- Smoke
- A burning smell
- Sparks
- Melted plastic
- A hot plug or outlet
- Repeated breaker trips
- Loud electrical buzzing
- Visible cord damage
Move perishable food to another working refrigerator or an ice-filled cooler if cooling has not resumed.
Is Food Safe After the PO Alert?
The PO warning means the freezer temperature rose, so food safety should be assessed separately from the condition of the refrigerator.
Refrigerator food
An unopened refrigerator generally keeps food cold for about four hours during a power outage. Keep the door closed as much as possible.
Discard refrigerated perishable foods when they have been above 40°F or 4°C for an unsafe period. This includes items such as:
- Meat
- Poultry
- Fish
- Milk
- Eggs
- Soft cheese
- Cooked leftovers
Do not taste food to determine whether it is safe.
Frozen food
A full, unopened freezer can normally hold a safe temperature for approximately 48 hours. A half-full freezer may hold it for about 24 hours.
Frozen food may often be refrozen when it:
- Still contains ice crystals, or
- Measures 40°F or 4°C or below
Quality may decline even when the food remains safe. FoodSafety.gov advises never tasting food to judge its safety.
Quick food-safety guide
| Situation | Recommended action |
|---|---|
| Refrigerator outage under four hours with doors closed | Food is generally expected to remain cold |
| Perishable food above 40°F or 4°C for an unsafe period | Discard it |
| Full freezer closed for less than about 48 hours | Check temperature and ice crystals |
| Half-full freezer closed for less than about 24 hours | Check temperature and ice crystals |
| Frozen item still has ice crystals | It may generally be refrozen |
| Outage duration and food temperature are unknown | Use the cautious food-safety option |
| Food looks or smells unusual | Discard it, but remember normal smell does not prove safety |
Models and Control-Panel Differences
The PO code is documented on selected Whirlpool:
- French-door refrigerators
- Bottom-freezer refrigerators
- Side-by-side refrigerators
- Dispenser-equipped models with Measured Fill controls
Not every Whirlpool refrigerator uses PO. Some models show the full Power Outage message, while simpler models may not store or display an outage alert.
Before using any button sequence:
- Find the model number.
- Enter it in Whirlpool’s manual search.
- Open the control-panel or power-outage section.
- Follow the instructions for that exact model.
Regional Guidance
The PO documentation and Measured Fill procedure are mainly associated with North American Whirlpool refrigerator families.
Owners in the United Kingdom, Ireland, Australia or New Zealand may have a locally produced model with different controls, voltage requirements or error-code behaviour. An imported North American refrigerator may still use PO, but its electrical installation must meet local requirements.
Do not apply North American voltage or plug specifications to a refrigerator sold for another market. Use the appliance rating plate, regional Whirlpool support site and supplied manual.
When to Call a Technician
Arrange professional appliance service when:
- PO returns repeatedly despite stable household power
- The control panel will not respond after a model-approved reset
- The refrigerator does not resume cooling
- Temperatures remain above safe levels
- The compressor or fans do not appear to operate
- The display repeatedly switches off and on
- Additional error codes appear
- Water or ice functions remain disabled after PO is acknowledged
- Internal electrical diagnosis is required
Contact a qualified electrician instead when the outlet, breaker or household supply appears to be the source of the interruption.
Safety Warning
Do not:
- Open control-board covers
- Touch internal wiring
- Perform live-voltage tests
- Bypass the grounded connection
- Use a damaged extension cord
- Repeatedly reset a tripping breaker
- Replace electronic parts based only on the PO code
- Work on the compressor or sealed refrigerant system
Stop homeowner troubleshooting when the task requires electrical measurements, internal disassembly or refrigerant-system work.
Frequently Asked Questions
How do I clear the PO code on my Whirlpool refrigerator?
On selected panels, press Measured Fill beneath “Confirm.” Models showing the full Power Outage message may require you to touch a control button to silence and then clear the alert. Use the owner’s manual when the panel does not show a clear prompt.
Should I hold the Measured Fill button for three seconds?
Whirlpool’s official PO instructions generally say to press Measured Fill to acknowledge the outage. Do not hold it unless your model’s manual specifically tells you to do so.
Will the PO code disappear when the refrigerator gets cold?
Not necessarily. The alert normally requires acknowledgment. Cooling may resume while PO continues flashing and the dispenser controls remain unavailable.
Why does PO appear when there was no power outage?
There may have been a brief interruption that you did not notice. An unstable outlet, loose connection, tripped breaker or intermittent refrigerator power problem may also cause repeated warnings.
Can I unplug the refrigerator to clear PO?
A power cycle may help if the panel is unresponsive, but first try the correct acknowledgment button. Reset times vary by model, so follow the owner’s manual.
Does PO mean my refrigerator needs a new control board?
No. PO confirms a power-outage event on supported models, not a specific failed part. A control board should be considered only after the power supply and other symptoms have been properly diagnosed.
How long will food stay safe during an outage?
An unopened refrigerator generally keeps food cold for about four hours. A full freezer may hold temperature for about 48 hours, while a half-full freezer may hold it for about 24 hours.
Why is the water dispenser not working while PO flashes?
On selected models, other control and dispenser functions are disabled until the power-outage warning is acknowledged. Press the control identified as Confirm.
Daniel Brooks is a US-based appliance troubleshooting researcher with 12 years of experience studying washer, dryer, refrigerator, and dishwasher faults. He reviews manufacturer manuals and converts technical error codes into safe, practical guidance for homeowners.