F28
JennAir
Serial Communication Error (Motor/Control)
Display shows F28; washer may not start or may stop mid-cycle.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Loose wiring between motor and control, failed motor control circuit, electrical interference, defective main control board
How to Fix / Troubleshooting
Safety first: Disconnect power before accessing internal components.
- Inspect harness: Trace the wiring from the main control board to the motor. Ensure all connectors are fully seated and wires are not pinched or damaged.
- Check for moisture: Look for signs of water intrusion near connectors or boards; dry thoroughly and correct any leaks.
- Power reset: Reassemble, restore power, and attempt a short cycle to see if the error clears.
- Replace control or motor: If F28 persists and wiring is good, either the motor or control board may be defective and should be replaced with JennAir-approved parts.
When to call a technician: Communication faults can be complex; professional diagnosis is recommended.
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Repair Difficulty
Hard
4/5
Required Part
Main Control Board (CCU)
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