F27 on Whirlpool Washer: Overflow Fault

Quick Answer

F27 is the only critical severity code in this list. When the overflow float switch trips, the machine cuts off the fill and halts the cycle immediately. If the inlet valve is stuck open, water will continue entering the tub even with the machine off. The first action must be turning off both water supply valves at the wall. After stopping the water supply, check whether the inlet valve closes when unpowered. If the tub continues filling after unplugging the machine, the valve is stuck open and must be replaced. If the valve closes, the pressure switch likely failed in the tripped position, reporting an overflow that did not occur.

WhirlpoolWasherSeverity: criticalDifficulty: intermediate82% DIY Success

Time to Fix

30–75 min

Difficulty

intermediate

Parts Cost

$25 – $55

Tools Needed

Multimeter, Flat-head screwdriver

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Not seeing F27 on your display?

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overflow fault

MaytagF27

What Does the F27 Code Mean?

Overflow float triggered. Shut off water supply immediately. Check inlet valve, then pressure switch.

Most Likely Causes

Based on aggregated repair data, here is the probability breakdown for this error code:

Stuck-open water inlet valve solenoid (55%)40%

Clogged pressure switch hose causing false overflow reading (15%)36%

Failed pressure switch stuck in overflow position (30%)24%

Symptoms You May Notice

F27 displayed and cycle immediately halted
Tub visibly overfilled above normal wash level
Water on floor near machine
Machine will not restart after reset

Can you reset a Whirlpool washer to clear the F27 code?

After addressing the root cause, turn on supply valves and plug the machine back in. Run a single cold-water short cycle and observe the fill level before returning to normal operation. F27 will clear once the overflow float switch is no longer triggered.

Tools Required for Diagnosis

MultimeterFlat-head screwdriverTowels and mopShallow pan

Diagnostic Checklist

Follow these steps in order. We start with the easiest external fixes before opening up the machine.

Immediately turn off both hot and cold water supply valves at the wall

Immediately turn off both hot and cold water supply valves at the wall. Unplug the washer. Observe the tub water level. If it rises after unplugging, the inlet valve is stuck open.

With supply valves off and machine unplugged

Locate the pressure switch and detach the rubber hose

With the tub empty and inlet valve confirmed closing

Replacement Parts

If your diagnostic testing proves the component has failed, you will need a replacement. We recommend OEM parts over aftermarket for water-handling components.

Part Name	OEM Number	Estimated Price
Water Inlet ValveWPW10346771 · $30–$55	WPW10346771	$30 – $55
Pressure SwitchWPW10514214 · $25–$45	WPW10514214	$25 – $45

Verify part fitment for your Whirlpool model

Repair vs. Replace Calculator

Appliance Age (Years)7 Yrs

Labor Approach

Our Verdict

REPAIR

Estimated Cost: $40 (Parts) vs $700 (New Machine)

Frequently Asked Questions

Can F27 appear even if the tub is not actually overflowing?

Yes. If the pressure switch is stuck in the tripped position or its hose is clogged with soapy buildup, the machine receives a false overflow signal. This is the second most common cause of F27 after a stuck-open valve.

How do I know if my Whirlpool inlet valve is stuck open?

Unplug the machine and turn off the supply valves. Wait 5 minutes. If water is still trickling into the tub, the valve has not closed and is stuck open. Replace it immediately.

Is F27 dangerous to ignore?

Yes. An active stuck-open inlet valve will flood the laundry room regardless of whether the machine is running. Do not restart the machine or restore power until the valve is confirmed closed or replaced.

Related Whirlpool Washer Error Codes

Code: LFWhirlpool Washer LF Error Code: Long Fill Code: F0 E7Whirlpool Washer F0 E7 Error Code: No Water Detected Code: RESETHow to Reset a Whirlpool Washer

Same Fix on Other Brands

Maytag washerF27: Maytag Washer F27 Error Code

Same Fix Works on These Brands

Whirlpool shares the same hardware platform with these brands. The diagnosis and repair steps are identical.

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Models Known to Experience F27 Errors

This repair applies to most Whirlpool washers with this error code. Common model numbers include:

WTW4816FW, WTW5000DW, WTW7000DW, WTW4850HW, WTW6120HW

Last verified for technical accuracy on March 14, 2026