Written by
Maren Coleman Appliance Care EditorPublished October 29, 2026
VERIFIED
Error codeFod / F18
ApplianceWasher
Too many suds trigger Fod, shown as F18 on some units, on a compact front load Whirlpool. The washer halts its program because of the foam, and it may halt again and again until the suds have dropped far enough.
Getting rid of the foam
Launch the Rinse & Spin program and add the Intensive Rinse option.
Look at the drain pump filter and make sure it is clean.
In future, measure detergent as its maker advises, and think about turning on the Dosing Aid option.
What else produces suds
Detergent type. Only HE (high-efficiency) detergent belongs in this washer. A regular product, or too big a measure, causes excess suds, and those can end in leaks, draining concerns and weak rinsing.
Drain hose. Check it for kinks or clogs. A restricted hose or standpipe (drainpipe) can bring on Fod.
Washers covered
Compact front load washers.
Related washer codes
FdL and F29: a door that will not unlock, with a drain pump filter step.
If Fod returns despite a clean filter, a clear hose and the right detergent, a technician can visit your home in San Francisco and the Bay Area. Go to Whirlpool washer repair or call (415) 687-4102, with the model number and a note of your detergent steps.
Model compatibility: Whirlpool reuses codes across series and model years, so Fod / F18 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
Fod or F18 means excessive foam interrupted the program on a compact front load washer.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your Whirlpool appliance?
Book a specialist visit for a clear estimate and approval before any repair.
You submit a request with your appliance model and symptom, we confirm an appointment window, and a technician performs an on-site diagnosis. You then receive a clear estimate and decide whether to proceed before any repair begins.
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Replacement parts are selected for the exact model and confirmed with you before ordering or installation.
Service areas are listed on the Locations page. Contact us with your ZIP code to confirm current coverage for your address.
Ready to get your Whirlpool appliance working again?
Book a repair online or call us — clear estimates and approval before any repair work begins.
