Crosley Washer Error Code E91

E91 indicates a communication error between the user interface board and the console control board. The two boards have lost their ability to send and receive signals through the connecting wiring harness. The washer cannot complete a cycle until the communication link is restored. The first diagnostic step is to inspect the wiring harness between the two boards for damage or loose connections.

You should not attempt to run the washer while E91 is active. Because the UI board and console control board cannot communicate, the machine cannot properly execute or monitor a wash cycle, which could lead to unexpected behavior. Power the unit off and leave it unplugged until the fault is diagnosed and repaired.

Repair costs depend on the root cause. If the fix is simply reseating a connector, there may be no parts cost at all, though a service call from a technician would typically run between $75 and $150 for labor. A replacement wiring harness generally costs in the range of $20 to $60 for the part. If a UI board or console control board needs replacement, parts alone can range from $80 to $250 or more depending on the specific board, with additional labor on top if a technician performs the work.

A knowledgeable DIYer can tackle the initial diagnosis by unplugging the washer, accessing the control panel area, and inspecting the wiring harness connectors between the UI board and console control board. Reconnecting a loose connector or replacing a damaged harness is within reach for someone comfortable working with appliance wiring. If the fault points to a failed control board, board replacement is more involved but still possible with the correct replacement part. Always disconnect power before handling any wiring or control components.

A power reset, such as unplugging the washer for a few minutes and restoring power, may temporarily clear the error code if the fault was caused by a transient signal disruption. However, if the underlying cause is a damaged harness, corroded connector, or failed board, the error will return as soon as the washer attempts communication again. A reset alone is not a repair and should only be used as part of the diagnostic process.