- Appliances
- Refrigerators
PO
Whirlpool PO on a refrigerator: power outage alert with a warm freezer
Risk level
Medium
Proceed carefully and stop if the check is unclear.
Urgency
High
Quick answer
PO is Whirlpool's power outage alert: power was cut and the freezer reached 18 °F (-8 °C) or higher. Press the MEASURED FILL button under Confirm to acknowledge it and, before anything else, check the food with the CDC rule.
Safety first
Stop and check this first
- Do not tamper with the fridge socket or wiring if you suspect it is cutting the power: an electrician should check it.
- With PO, the food has been above safe temperatures. Follow the CDC rule: do not taste food to decide whether it is safe; when in doubt, throw it out.
Safe checks you can perform
- Acknowledge the alert
- Food after the outage
- Was the whole home affected?
Leave these tasks to a qualified professional
- Do not attempt this professional task: Fridge socket and circuit check
- Do not attempt this professional task: Fridge check if there was no outage
What a technician must be able to justify
A technician is coming
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Fridge socket and circuit check
What they doIf PO repeats without general outages, an electrician measures the voltage at the socket and checks the plug and circuit protection.
They must show youthe socket measurement and the condition of the plug.
In writingthe fault found in the installation and what was corrected.
Fridge check if there was no outage
What they doIf the installation is fine and PO keeps appearing, Whirlpool service checks the internal power supply and the control.
They must show youwhat they checked and found.
In writingthe cause and the replaced part with its reference.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Checks and evidence, step by step
Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
- 1
Acknowledge the alert
No special tools
Procedure
- Who:
- you.
- How:
- press the MEASURED FILL button under the word Confirm, as Whirlpool instructs.
- Result that matters:
- PO disappears and the panel returns to the home screen.
- If it disappears:
- the alert is acknowledged; move on to the food.
- If it does not:
- check your model's manual or contact Whirlpool service.
- Evidence to keep:
- a photo of the panel with PO before acknowledging it.
Evidence: PO Error Code - Refrigerator
- 2
Food after the outage
No special tools
Procedure
- Who:
- you.
- How:
- put appliance thermometers in the fridge and freezer and work out how long the outage lasted.
- Result that matters:
- the CDC gives the fridge 4 hours at most and a full freezer 48 hours (24 if half full) with the doors closed, and sets 40 °F (about 4 °C) as the limit.
- If frozen food still has ice crystals or is at 40 °F or below:
- the CDC allows refreezing it.
- If the outage went beyond those times or you are unsure:
- throw perishables away without tasting them.
- Evidence to keep:
- photos of the thermometers with the time and a list of what you threw away.
Evidence: PO Error Code - Refrigerator · Keep Food Safe After a Disaster or Emergency
- 3
Was the whole home affected?
No special tools
Procedure
- Who:
- you.
- How:
- check whether other appliances lost their clock or a breaker tripped at the panel.
- Result that matters:
- knowing whether PO reflects a general outage or only the fridge.
- If it was general:
- PO was the expected alert; nothing more is needed.
- If only the fridge was affected or it repeats:
- ask an electrician to check the socket and circuit.
- Evidence to keep:
- the date and time of each PO alert.
Evidence: PO Error Code - Refrigerator
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Appliances
- Brand
- Whirlpool
- Product type
- Refrigerators
Known code variants
- aviso PO Whirlpool
- error PO Whirlpool
- PO frigorífico Whirlpool
- PO power outage Whirlpool
- Whirlpool PO
- Whirlpool PO corte de luz
- Whirlpool PO error code
- Whirlpool refrigerator PO
What it means
Whirlpool explains that PO is a power outage alert: it activates if the power to the fridge was off and the freezer temperature rose to 18 °F (-8 °C) or higher. The panel shows PO, a tone sounds three times and the word Confirm flashes. To clear it, you press the MEASURED FILL button under Confirm and the panel returns to the home screen. It does not mean the fridge is faulty, but that the food may have warmed up: that is why it should be checked against official guidance before you eat it.
Warnings and stop conditions
- Mediumeditorial warning
Do not tamper with the fridge socket or wiring if you suspect it is cutting the power: an electrician should check it.
Evidence: PO Error Code - Refrigerator
- Highsource verified
With PO, the food has been above safe temperatures. Follow the CDC rule: do not taste food to decide whether it is safe; when in doubt, throw it out.
Evidence: PO Error Code - Refrigerator · Keep Food Safe After a Disaster or Emergency
Symptoms and causes
Probable causes · in order
- Power cut with a temperature riseConfirmed
This is the cause Whirlpool gives: the power was cut and the freezer reached 18 °F (-8 °C) or higher. It is confirmed if there was a power cut or a tripped breaker.
Evidence: PO Error Code - Refrigerator
- Repeated cuts at the fridge onlyPossible
If PO appears with no power cuts in the rest of the home, the socket, plug or fridge circuit may be cutting the power. This is an editorial deduction for an electrician to check.
Evidence: PO Error Code - Refrigerator
Virtual technician
Does PO still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
Whirlpool · official_doc
- 2
Keep Food Safe After a Disaster or Emergency
Centers for Disease Control and Prevention (CDC) · 2025 · official_doc
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