F18
What code F18 means on a Whirlpool washing machines, what causes it, and which part to check first.
● SEVERITY: HIGH
Whirlpool F18 means: Internal data error or excess foam detected. The documented cause is: On some models this code indicates an internal control board data error. On others it indicates excessive foam in the drum caused by using too much detergent or the wrong detergent type in a high-efficiency…
What F18 means
Internal data error or excess foam detected
The display shows F18 and the machine stops until the fault is cleared.
What the technical documentation says
Causes documented in the technical source published by whitegoodshelp.co.uk
| DOCUMENTED CAUSE OR CHECK |
|---|
| On some models this code indicates an internal control board data error |
| On others it indicates excessive foam in the drum caused by using too much detergent or the wrong detergent type in a high-efficiency machine |
Replacement parts
Tools you'll need
Before you open anything
Unplug the machine and close the water tap before removing any panel. Water and mains electricity sit centimetres apart inside a washing machine. If the drum still holds water, drain it from the filter first — it can be scalding.
What to check, in order
From the quickest check to the one that needs a technician.
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Frequently asked questions
What does F18 mean on a Whirlpool?
Internal data error or excess foam detected The documented cause is: On some models this code indicates an internal control board data error. On others it indicates excessive foam in the drum caused by using too much detergent or the wrong detergent type in a high-efficiency machine.
Can I fix F18 myself?
It depends on the part involved: On some models this code indicates an internal control board data error. On others it indicates excessive foam in the drum caused by using too much detergent or the wrong detergent type in a high-efficiency machine. Clearing a filter or straightening a hose is within reach of anyone; anything behind a panel means mains electricity and water together — that is a job for a technician.
Does Whirlpool use other codes on this appliance?
Yes: we document 17 other codes for Whirlpool on this washing machines. They are listed at the bottom of this page, each with its own meaning.
Does the same code mean the same thing on other brands?
Often not. The same two characters can point to completely different faults depending on the manufacturer — always check the page for your own brand.