F44
Whirlpool Washing Machine
Severity: ModerateWhat Does This Error Mean?
The F44 error on a Whirlpool washer indicates a motor control unit fault — specifically a problem detected during the startup or self-test of the MCU. The motor control electronics failed their own diagnostic check and stopped the machine before starting a cycle.
Affected Models
- WFW5620HW
- WFW8620HW
- WTW7120HW
- WFW9620HC
- Most Whirlpool front-load washers with MCU
Common Causes
- Motor control unit has failed its internal self-test
- Power supply to the MCU is unstable or out of specification
- Communication between the main control board and MCU is interrupted
- Wiring harness connecting the MCU to the main board is loose or damaged
- MCU component failure after a power surge or age-related degradation
How to Fix It
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Unplug the washer for 15 minutes and plug it back in.
A power reset is always the first step. A temporary electronics glitch can trigger F44 and a reset may clear it.
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Make sure the washer is plugged directly into a dedicated wall outlet.
Shared circuits or extension cords can cause voltage irregularities that fail the MCU's startup self-test.
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Check if there were any recent power outages or surges.
A nearby lightning strike or power company surge can damage motor control electronics even without visible damage.
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Try running the machine without any laundry to test if it starts normally.
If the machine passes startup without clothes, the F44 may have been a one-time glitch. Reload and try a normal cycle.
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If F44 appears every time the machine is started, the MCU needs professional replacement.
A failed MCU startup test cannot be fixed by resetting — the board itself needs to be replaced.
When to Call a Professional
F44 is almost always a motor control board or communication fault. A technician needs to test the MCU and main board with diagnostic tools. Expect repair costs of $150–$300 for the MCU plus labor.
Frequently Asked Questions
What is an MCU self-test on a Whirlpool washer?
Every time the washer is powered on, the motor control unit runs a quick check of its own circuits. This makes sure all the electronics are working before the machine is allowed to start a cycle. If the MCU finds something wrong with itself, it reports F44 and refuses to start.
Can the main control board cause F44?
Yes — the MCU receives its startup instructions from the main control board. If the main board is sending bad signals or not communicating at all, the MCU cannot complete its self-test. A technician needs to test both boards to identify which one is at fault.
Is F44 fixable at home?
The power reset and outlet check are DIY-friendly steps. Actually replacing the MCU requires identifying the correct part number, purchasing it, and performing the physical swap. Unless you have appliance repair experience, hiring a technician is safer and often faster.