F27
Whirlpool Washing Machine
Severity: ModerateWhat Does This Error Mean?
The F27 error means your Whirlpool washer has a water overflow problem. The machine detected more water than expected in the drum. It stops the cycle to prevent flooding.
Affected Models
- WFW5620HW
- WFW6620HW
- WFW9620HC
- Most Whirlpool Duet front-load washers
Common Causes
- Faulty water inlet valve that won't fully close — water keeps trickling in
- Pressure switch (water level sensor) giving incorrect readings
- Siphoning from the drain hose pulling extra water into the machine
- Clogged pressure switch hose leading to false high-water readings
- Control board not shutting off the water inlet valve in time
How to Fix It
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Turn off the washer and unplug it immediately.
Also turn off the hot and cold water supply taps behind the washer.
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Check the drain hose positioning.
If the hose end is too low or submerged in water, it can siphon water back in. Raise it to the correct height.
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Inspect the water inlet valve hoses for any drips when taps are on.
Turn the taps on briefly and watch for water continuing to drip into the drum. A leaking valve needs replacing.
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Check the pressure switch tube (a small rubber hose) for clogs or cracks.
Disconnect it and blow through it gently. A clogged tube gives false water-level readings.
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Call a certified technician if the inlet valve or pressure switch needs replacement.
These are not straightforward DIY repairs on modern front-load washers.
When to Call a Professional
An overflowing washer can damage floors and cause mold. Do not restart the machine until the inlet valve or pressure switch is checked. Repair costs are typically $120–$280 including parts and labor. Contact Whirlpool support or a certified technician immediately.
Frequently Asked Questions
Is the F27 error dangerous on a Whirlpool washer?
It can be — excess water can overflow and damage your floor. Turn off the machine and the water taps right away. Do not restart until the cause is found.
Can a faulty inlet valve cause the F27 overflow error?
Yes — a stuck-open inlet valve lets water keep flowing into the drum. Even with the washer off, water can trickle in. Turn off the water supply taps to stop the flow while waiting for repair.
How much does it cost to fix a Whirlpool washer F27 error?
If it's a drain hose position issue, the fix is free. An inlet valve replacement costs $80–$180 with labor. A pressure switch replacement costs $90–$180.