Electrolux Washer Error Code 5B

The 5B error code on an Electrolux washer indicates a motor control under voltage condition. The motor control board has detected that the voltage supplying the drive system has fallen below an acceptable level. The washer halts operation to prevent motor damage from running under insufficient voltage. Diagnosis begins with checking the supply voltage under load and inspecting all wiring to the unit.

No, you should not continue running the washer while the 5B code is active. The code indicates the motor is receiving insufficient voltage, and operating under those conditions can cause further damage to the motor or motor control board. Stop using the machine and address the root cause before resuming normal laundry cycles.

A reset may temporarily clear the 5B code, but the fault will return if the underlying cause has not been corrected. Because 5B indicates an ongoing electrical condition rather than a one-time glitch, clearing the code without fixing the supply voltage or wiring issue will result in the error reappearing during the next cycle. A proper repair requires diagnosing and resolving the root cause first.

Some causes of the 5B code are DIY-accessible, such as checking that the wall outlet is functioning properly, verifying the circuit is not overloaded, and inspecting visible wiring connections for looseness or corrosion. However, if the fault points to the motor control board or internal wiring harness damage, those repairs are more complex and may require a technician to perform tests 6 and 9 using proper diagnostic equipment.

Repair costs vary depending on the root cause. If the issue is a supply wiring problem or a loose connection, the cost may be minimal, covering only a service call in the range of $75 to $150. If the motor control board needs replacement, parts and labor combined can range from $200 to $450 or more depending on the model and local labor rates.