Whirlpool Dryer Error Code UI communication error

This error means the display panel (UI board) is not receiving communication signals from the main control board (CCU). The dryer automatically disables the display while this condition exists to prevent incorrect information from showing. The fault can stem from loose wiring, a damaged harness, or a failed board on either end of the communication link.

Because the display is disabled during this error, you cannot reliably monitor or control dryer settings, which means operating the dryer is not advisable. Running the dryer without a functioning control interface could result in unmonitored operation. It is best to resolve the communication fault before resuming use.

Repair costs vary depending on the root cause. If only a harness connector needs to be reseated, there may be no parts cost, with a service call fee typically ranging from $75 to $150. Replacing a UI board generally costs between $100 and $250 for the part, while a CCU replacement can range from $150 to $350 or more for the part, with labor added on top if a technician performs the work.

Some cases can be resolved without professional help, particularly if a loose harness connector is the cause. Disconnecting power for one minute and restarting the dryer is the first step, and visually inspecting the wiring harness connectors between the UI board and CCU is a reasonable next step for a confident DIYer. If the error returns after reconnecting a secure harness, board replacement typically requires sourcing the correct part and basic disassembly skills.

A power reset by unplugging the dryer for at least one minute may clear the error if it was caused by a temporary voltage irregularity. However, if a physical fault such as a damaged harness or failed board is present, the error will return shortly after power is restored. A reset is a useful first diagnostic step but not a guaranteed fix.