Electrolux Dryer Error Code E51

E51 indicates a drum motor relay error on the electronic control board. The control has detected voltage on the motor sensing circuit in a state that does not match the commanded relay position, meaning the relay may be stuck open or closed. Defective wiring between the board and motor can also trigger this code. The dryer stops operation as a safety measure when this fault is detected.

No, you should not attempt to operate the dryer while E51 is active. The error indicates the motor relay may be in an uncontrolled state, which means the motor could receive power unexpectedly or fail to shut off properly. Continuing to run the dryer under these conditions risks damage to the motor, control board, or, in a worst case, an electrical hazard.

Repair costs vary depending on the failed component and whether you use a professional technician. A wiring repair or connector cleaning is typically the least expensive fix, often costing little beyond a service call fee ranging from $75 to $150. Electronic control board replacement is the most common major cost, with parts generally ranging from $100 to $300 or more depending on the model, plus labor if a technician is used.

A knowledgeable DIYer can begin by measuring resistance between terminals J3-1 and J3-2 on the electronic control board; a reading of 0 ohms points to a relay or board failure requiring part replacement. Inspecting and reseating the wiring harness connectors at J3 is also a reasonable first step that requires no parts. However, if the control board itself has failed, replacing it involves working near line voltage components, which carries serious safety risks and is best handled by a qualified technician.

A power reset may temporarily clear the error code, but E51 will return if the underlying fault is still present. Because this code reflects a hardware condition such as a stuck relay, shorted wiring, or a failed control board, the root cause must be diagnosed and repaired before the dryer will operate reliably. Resetting without repair is not a solution.