Whirlpool Dishwasher Error Code F8

The F8 code indicates an incorrect water level was detected in the tub during the wash phase. Specifically, it means the mechanical water presence indicator toggled low more than 20 times in 2 minutes, or the optical water indicator failed to send a confirmation signal after filling. The dishwasher stops the cycle until the water level issue is resolved. Common triggers include excessive suds, clogged filters, or a faulty water level sensor.

It is not recommended to continue running the dishwasher while the F8 error is active. The appliance has detected an abnormal water level condition and stopped the cycle as a protective measure. Running it in this state could result in poor cleaning performance or potential issues related to undetected water levels. Address the root cause before resuming normal use.

If the fix is as simple as cleaning filters or securing the salt cap, there is no parts cost involved. If a water presence indicator or optical water indicator needs to be replaced, parts typically range from $15 to $60 depending on the specific sensor and model. Adding professional labor, the total repair cost could range from $80 to $200 or more. Diagnosing the exact failed component before ordering parts is recommended.

Start by checking the filters for blockages and cleaning them if needed. Verify that the salt compartment cap is fully closed and that you are using the correct amount and type of detergent to avoid excessive suds. If those checks are normal, inspect the water presence indicator (WI or OWI) for damage or fouling. If the sensor is defective, it will need to be replaced to clear the fault.

A reset may temporarily clear the F8 code, but the error will return if the underlying cause is not corrected. Resetting without fixing the problem means the dishwasher will likely fault again during the next fill and wash cycle. Diagnose and resolve the water level or sensor issue first, then reset the unit to confirm the fault is gone.