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Error code reference

Frigidaire Dishwasher Error Code i94

UIDATA version mismatch

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What the i94 error code actually means

The i94 error means your dishwasher's control panel and its main circuit board are not compatible with each other and cannot communicate properly. This usually happens after one of those boards has been replaced with one that does not match the other. The dishwasher will not run normally until both boards are replaced with a compatible matched pair.

Diagnostic procedure

The full i94 procedure

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1
First diagnostic step
Replace both the UI and powerboard
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Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of i94

Ranked by how often they cause this code
  1. 1Mismatched replacement board installed
  2. 2Incompatible UI board installed at the factory or during service
  3. 3Corrupted configuration file on the powerboard
  4. 4Failed or partially failed UI board

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Questions people ask about i94

What does i94 mean on a Frigidaire dishwasher?
The i94 error code indicates a UIDATA version mismatch between the dishwasher's user interface board and its main powerboard. The configuration data on the powerboard does not match the UIDATA version expected by the installed UI board. This prevents normal communication between the two boards and stops the dishwasher from operating correctly. Both boards must be replaced together to resolve the issue.
Is it safe to keep using my dishwasher when i94 is displayed?
The i94 error indicates the control boards cannot communicate properly, which means the dishwasher is unlikely to operate normally. Attempting to run the appliance in this state is not recommended, as the control system is not functioning as intended. It is best to stop using the dishwasher until the board mismatch is resolved.
How much does it cost to fix the i94 error on a Frigidaire dishwasher?
Because the i94 error requires replacing both the UI board and the powerboard, repair costs can vary depending on parts availability and labor rates in your area. Parts alone for both boards typically range from $150 to $350 or more, and professional labor can add $100 to $200 on top of that. It is worth getting a repair estimate and comparing it to the cost of a replacement dishwasher before proceeding.
Can I fix the i94 error myself, or do I need a technician?
Resolving the i94 error requires replacing both the UI board and the powerboard as a matched pair, which involves working with the dishwasher's internal electrical components. Homeowners with experience in appliance repair may be able to perform this replacement, but the job involves disconnecting power and handling circuit boards. Most homeowners will want a qualified appliance technician to handle this repair to avoid additional damage.
Will resetting my Frigidaire dishwasher clear the i94 error?
No, resetting the dishwasher will not clear the i94 error. The error is caused by a fundamental hardware or firmware incompatibility between the UI board and the powerboard, not by a temporary software glitch. The mismatch will persist until both boards are replaced with a compatible matched set.

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