What does Whirlpool Washer PF Error Code - Causes & Fix mean?

PF means Power Failure: the cycle was interrupted by lost or low voltage. Press and hold START to resume or press POWER to clear.

How do I fix Whirlpool Washer PF Error Code - Causes & Fix?

Follow the step-by-step diagnosis below. The most likely fix is identified by checking power, sensor resistance, and control-board signals in order — using a multimeter and the part numbers documented in the parts reference table.

Can I keep running the equipment with this fault active?

Generally no. Faults on Appliance units are emitted when a sensor, safety, or control circuit is outside its operating envelope. Running through an active fault risks compressor, heater, or control-board damage. Diagnose and clear the fault first.

What part is most commonly replaced for Whirlpool Washer PF Error Code - Causes & Fix?

The most frequently replaced parts for Whirlpool Washer PF Error Code - Causes & Fix are listed in the Parts Reference section of this guide with OEM part numbers and typical price ranges. Check the table for direct replacements.

Is Whirlpool Washer PF Error Code - Causes & Fix a DIY repair or do I need a technician?

Sensor swaps, fan motor replacements, and condenser cleaning are typical DIY-level repairs. Anything involving refrigerant, gas, or high-voltage (>240V) work requires a licensed technician for both safety and code-compliance reasons.

Whirlpool Washer PF Error Code - Causes & Fix

Whirlpool Washer PF Error Code — What It Means

The PF code on a Whirlpool washer stands for Power Failure. It means the wash cycle was interrupted by a loss or disturbance in the electrical supply to the machine. The washer’s control board detected that power dropped out or fell below safe operating levels, so it stopped the cycle and posted the code. Whirlpool instructs you to touch and hold START to restart the cycle where it left off, or press POWER to clear the display.

PF is not usually a failed-part code by itself. It is an event code that can be triggered by a brief utility outage, a voltage sag, a loose plug or receptacle, a weak breaker, or any condition that makes the control see an interruption in supply power. Field diagnostics have shown PF appearing when outlet voltage drops to 108 VAC instead of the required 120 to 125 VAC range. Less commonly, internal wiring or control-board power-supply issues can make the controller think power was lost even when the outlet is good.

Jump to Fix

Common Causes

Actual power outage or voltage sag A brief utility interruption, brownout, or voltage drop under load caused the controller to see a loss of supply and stop the cycle.
Loose or unplugged power cord The washer’s plug is not seated fully in the receptacle, or the cord connection at the back of the machine is loose, creating an intermittent supply.
Failing outlet or weak receptacle contact The wall receptacle has loose internal contacts, corrosion, or heat damage that interrupts power or drops voltage under the washer’s load.
Tripped, overloaded, or weak circuit breaker The breaker momentarily trips or sags under the motor’s startup current, or a GFCI or AFCI device nuisance-trips during the cycle.
Low incoming line voltage The outlet measures below 120 VAC, such as 108 VAC documented in field cases, causing the control to detect undervoltage and throw PF.
Internal control wiring or power-supply fault A loose harness connector, corroded terminal, or failing power-supply section on the main control board intermittently starves the controller of voltage.

Step-by-Step Fix

Confirm the code and symptom. Note whether the washer lost power mid-cycle, dimmed, or reset when other appliances in the house started up, and check that PF is the only code displayed.
Press POWER to clear the code or touch and hold START to restart the cycle per Whirlpool’s instructions, then observe whether the code returns immediately or only under load.
Measure the outlet voltage with a true-RMS multimeter. Verify stable supply around 120 VAC (field cases link PF to readings as low as 108 VAC when 120 to 125 VAC is expected), and check voltage again while the washer is running to catch sags under load.
Inspect the power cord and plug. Push the plug firmly into the receptacle, check for heat marks or melted plastic on the plug blades and outlet, and verify the cord connection at the back of the washer is tight and not damaged.
Check the circuit breaker and receptacle. Open the breaker panel and confirm the washer’s breaker is not loose or warm, reset any tripped GFCI or AFCI device, and test the receptacle with a plug-in tester or by measuring hot-to-neutral and hot-to-ground.
Run a test cycle while monitoring voltage. Start a normal wash and watch the meter for voltage dips during motor start, fill, or spin, and listen for relay clicks or dimming lights that indicate supply problems.
Inspect internal connections if external power is good. Unplug the washer, remove the top or rear access panel, and check all wire harness connectors to the main control board and user interface for looseness, corrosion, or heat damage, then reconnect and retest.
Replace the main control board only after proving stable supply. If the outlet reads steady 120 VAC, all connections are clean and tight, and PF still appears during cycles, suspect a failing power-input circuit or control board and consult your model’s service manual for board replacement.

Parts Often Needed

Part	Notes
Power cord	Amazon \| Replace if damaged, melted, or loose at the washer’s rear terminal block.
Main control board (machine control)	Amazon \| Required only after confirming stable incoming voltage and ruling out all external power-path issues.
Wall receptacle / outlet	Amazon \| Replace if contacts are loose, burned, or corroded and cannot hold the plug firmly.

When to Call a Pro

Call a licensed electrician if you measure low or unstable voltage at the outlet, if the breaker trips repeatedly, or if you are uncomfortable working inside your home’s electrical panel. Call an appliance technician if the outlet voltage is stable around 120 VAC, all external connections are tight and clean, and the PF code still appears during wash cycles. Internal control-board diagnosis and replacement require safe disassembly and proper part identification for your specific Whirlpool model. If you see burned wiring, smell melted plastic, or the washer sparks or smokes, disconnect power immediately and do not attempt repair yourself.