Frigidaire Dishwasher Error Code i93

The i93 code means the dishwasher detected a checksum failure in its UIDATA configuration. This is a data integrity fault involving the User Interface board and the powerboard. The stored configuration data produced erroneous results when the control system attempted to verify it. This code points to a board-level electronics problem rather than a mechanical or plumbing issue.

The recommended fix is to replace both the UI board and the powerboard at the same time. Replacing only one board may leave incompatible or corrupted UIDATA on the remaining board, which will continue to cause the checksum error. Confirm the correct part numbers for your specific model before ordering replacements.

Because this repair requires replacing both the UI board and the powerboard, parts costs typically range from around $100 to $300 or more depending on the specific model. If a technician is hired for the repair, labor costs will add to that total, often bringing the overall repair cost into the range of $200 to $500. Getting a quote specific to your model before proceeding is recommended.

A reset is unlikely to clear the i93 error permanently. Because the fault is tied to corrupted or mismatched configuration data stored on the boards themselves, the checksum failure will reappear each time the appliance runs its startup verification. A reset does not repair or rewrite corrupted board memory.

It is not advisable to continue running the dishwasher while the i93 error is active. A checksum failure means the control system cannot confirm its configuration data is valid, which could result in unpredictable operation. Until the boards are replaced and the fault is resolved, normal reliable operation cannot be guaranteed.