Serial communication error

Unplug washer for 5 minutes to reset both boards
Check the serial communication cable between CCU and MCU — reseat connectors
Inspect connector pins for corrosion — clean with electrical contact cleaner
If harness is clean and seated, the CCU board has likely failed
Pro Diagnostic Tip
A 110-prefix Kenmore is a Whirlpool build, and on this platform serial faults like this one usually trace to water dripping into the CCU box tucked in the console or rear panel. Hunt down and cure the leak above the control before spending on a new board, or the replacement drowns the same way.
Repair Difficulty
Hard — Advanced Skills RequiredEstimated Repair Cost
$175–$375
Parts + labor. Free diagnosis with repair.
Parts That May Need Replacement
Bearing puller set ($120), drum spider wrench ($85), multimeter ($85), and diagnostic software. Our technician arrives with $3,000+ in professional tools — your diagnostic is free.
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Error code F11 is a high-severity issue that can cause further damage to your washer if left unresolved. A licensed technician can diagnose and fix it the same day.
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Kenmore error code F11 indicates: Serial communication error. This is a high-severity issue affecting your washer.
Unplug washer for 5 minutes to reset both boards Then, Check the serial communication cable between CCU and MCU — reseat connectors Then, Inspect connector pins for corrosion — clean with electrical contact cleaner There are 1 more steps — see the full troubleshooting guide above. This repair typically requires professional tools and expertise.
Besides the error code on the display, common signs include: The machine sits dead to every button press; The readout is blank or spits garbled characters; It halts at random points partway through the wash. If you notice any of these symptoms, check your washer's display panel for error code F11.
Repair costs for Kenmore F11 typically range from $175 to $375 depending on the specific cause and parts needed. EasyBear offers free diagnosis when you proceed with the repair. Call (415) 795-7300 for a same-day appointment.