F45
Whirlpool Washing Machine
Severity: ModerateWhat Does This Error Mean?
The F45 error on a Whirlpool washer indicates an unbalance detection system fault — the machine cannot properly monitor the drum balance during the spin cycle. The balance detection system uses sensors to make sure the drum does not shake dangerously, and F45 means those sensors or their circuit has a problem.
Affected Models
- WFW5620HW
- WFW8620HW
- WTW7120HW
- WFW9620HC
- Most Whirlpool front-load washers
Common Causes
- Balance sensor or accelerometer in the drum assembly has failed
- Drum suspension springs or shock absorbers are worn, giving abnormal readings
- Wiring to the balance detection system is loose or damaged
- Main control board fault affecting the balance sensor circuit
- Machine is not sitting level and is generating false imbalance signals
How to Fix It
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Check that the washer is sitting level on the floor.
Use a spirit level on top of the machine. If it is not level, adjust the feet at the bottom corners until the bubble is centered.
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Make sure the washer is not on a rubber mat, carpeted surface, or uneven flooring.
Unstable footing causes the drum to vibrate unpredictably, which can trigger balance sensor errors.
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Unplug the washer for 10 minutes to reset the control board.
A reset sometimes clears a temporary sensor fault. This is always worth trying before calling for service.
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Open the door and check the drum for any visible wear — look for items caught under the rubber door seal.
Foreign objects between the drum and tub can cause unusual vibrations that confuse balance sensors.
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If F45 persists after leveling and resetting, call a technician.
The suspension springs and shock absorbers wear out over time and need professional replacement when they fail.
When to Call a Professional
F45 requires professional diagnosis to determine whether the sensor, suspension, or control board is at fault. Drum suspension and sensor replacement requires disassembly of the machine. Expect repair costs of $130–$300.
Frequently Asked Questions
What does the balance detection system do on a Whirlpool washer?
During the spin cycle, the machine monitors how evenly the drum is spinning. If it detects too much vibration, it slows down, redistributes the clothes, and tries again. The F45 error means the system that does this monitoring has a fault — the machine cannot safely manage unbalanced loads.
Can worn suspension springs cause F45?
Yes — worn springs or shock absorbers allow the drum to move more than it should. This creates unusual vibration signals that confuse the balance sensor circuit. You may notice excessive shaking during spin before the F45 error appears.
How do I level a Whirlpool front-load washer?
Place a spirit level on top of the washer and check both left-right and front-back. Adjust the feet by turning them clockwise to raise or counterclockwise to lower. All four feet should make firm contact with the floor. Tighten the lock nuts on each foot to keep them from moving.