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Kenmore·Washerhigh severity
Kenmore Washer Error Code F28
Communication fault between boards
Common Causes
- 1Serial link failure
- 2Main board failure
- 3Motor control unit failure
- 4Wiring harness fault
Step-by-Step Troubleshooting
- 1
Unplug washer for 5 minutes to allow full reset of both boards
- 2
Reseat the serial communication cable between CCU and MCU
- 3
Check cable connector pins for corrosion — clean with contact cleaner
- 4
If cables test good, replace CCU first (more common failure than MCU)
Pro Diagnostic Tip
Applies to models starting with 110.xxxxx (Whirlpool platform). F28 vs F11: F11 is no communication at all; F28 is corrupted data on the serial line. Start with the cable — intermittent F28 is usually a loose connector.
You Might Also Notice
- •Washer stops mid-cycle randomly
- •Different error codes appear each time
- •Display flickers or shows garbled data
Parts, Cost & Difficulty
Repair Difficulty
Hard — Advanced Skills RequiredEstimated Repair Cost
$175–$400
Parts + labor. Free diagnosis with repair.
Parts That May Need Replacement
W10803585 central control unitW10756692 motor control unit
Do You Have the Right Tools?
Bearing puller set ($120), drum spider wrench ($85), multimeter ($85), and diagnostic software. Our technician arrives with $15K+ in professional tools — your diagnostic is free.
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High-voltage components and pressurized water lines create flood and shock risk. A single loose fitting can cause thousands in water damage. Our techs are licensed and insured — let them handle the risk.
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Error code F28 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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Frequently Asked Questions
What does Kenmore error code F28 mean?
Kenmore error code F28 indicates: Communication fault between boards. This is a high-severity issue affecting your washer.
How do I fix Kenmore error code F28?
Unplug washer for 5 minutes to allow full reset of both boards Then, Reseat the serial communication cable between CCU and MCU Then, Check cable connector pins for corrosion — clean with contact cleaner There are 1 more steps — see the full troubleshooting guide above. This repair typically requires professional tools and expertise.
How do I know if my washer has error F28?
Besides the error code on the display, common signs include: Washer stops mid-cycle randomly; Different error codes appear each time; Display flickers or shows garbled data. If you notice any of these symptoms, check your washer's display panel for error code F28.
How much does it cost to fix Kenmore F28?
Repair costs for Kenmore F28 typically range from $175 to $400 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.