Hisense Washing Machine Error Code F21 Meaning and Possible Fixes
Hisense Washing Machine Error Code F21
If your Hisense washing machine displays error code F21, the appliance has detected a user interface or display module fault. This is a technical fault that typically requires professional attention.
View all Hisense washing machine error codes
What the F21 Error Code Means
The F21 error code indicates a communication fault between the main control board and the user interface display module. The two components are not communicating correctly, which prevents the machine from operating normally. The machine stops the programme as a precaution.
Common Reasons This Error Appears
Faulty display module
The user interface display panel may have developed a fault and is no longer communicating correctly with the main control board.
Wiring fault between display and control board
A loose or damaged connection in the wiring harness between the display module and the main control board can disrupt communication and trigger this error.
Control board fault
An issue with the main electronic control module can affect its ability to communicate with the display module.
Power surge or interruption
A sudden power interruption or voltage spike can disrupt communication between modules and cause this error to appear.
Safe Checks You Can Try
Restart the washing machine
Switch the machine off at the mains and leave it unplugged for a few minutes. Reconnect the power, switch back on and restart the programme. A power reset can sometimes restore communication between the display and control board after a temporary disruption.
If the error persists after a reset, the display module or control board will need to be inspected by a qualified engineer.
If You Need Spare Parts
If you are confident carrying out the repair yourself, compatible Hisense washing machine parts are available on Amazon with next day delivery.
Always check your model number before ordering to ensure compatibility.
When To Contact A Professional
If the F21 error persists after a reset, an engineer will need to inspect the wiring between the display module and control board and replace any faulty components.
Internal components should only be inspected or repaired by trained professionals.
Related Hisense Washing Machine Error Codes
You may also encounter related issues indicated by Hisense Washing Machine Error Code F18 and Hisense Washing Machine Error Code F22.
Error codes may vary slightly between different Hisense washing machine models, so always consult the manufacturer documentation for your specific appliance.
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