A Bosch washer burning smell usually points to an electrical component or a slipping belt that is creating excessive heat. Unplug the washing machine before inspecting it. The most likely cause is a failed rotor and stator kit, which can smell burnt if the stator coils become wet, short out, or smoke. Next, inspect the main control board, motor control board, and control board for burn marks caused by a power surge or failed component. A worn water pump belt can slip on the pulleys, while a frayed drive belt can slip and create friction, causing a washing machine burning smell or a washer that smells like burning rubber. Check that the water pump, motor pulley, and other belt-driven parts turn freely, since a seized pump or idler pulley can overheat the belt. Test the stator coils with a meter if needed, and replace any visibly damaged or burnt part. Enter your Bosch washer's model number to find the exact replacement rotor and stator kit, control board, motor control board, water pump belt, or drive belt for your specific washing machine.
01 - Bosch Washing Machine Rotor and Stator Kit
The stator is part of a direct drive motor that electrically drives the outer rotor. If the stator coils become wet or the coated wires on the coils short out, they can produce a burning smell. You can test the stator coils with a meter. If the stator is smoking, or smells burnt, it will need to be replaced.
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The main control board provides power to the various components of the washer. If the control board receives a power surge, or a component fails, the control board can short-out causing a burning smell. Inspect the control board for burn marks. A burnt main control board will need to be replaced.
The motor control board sends power to the motor. If the motor shorts out or a power surge occurs components on the board can blow out causing a burning smell. Inspect the motor control board for burn marks and replace if necessary.
The control board provides power to the components of the washer. If the control board receives a power surge or a component fails, the control board can short out causing a burning smell. Inspect the control board for burn marks. If the control board is burnt, it will need to be replaced.
The water pump belt can get worn and slip on the pulleys causing a burning smell. Check the motor pulley for wear and make sure the water pump turns freely.
If the drive belt is worn or frayed it can slip on the pulley causing friction and a burning smell. Also check the components the belt is turning to make sure they turn freely. A stuck water pump or idler pulley can create enough friction to cause the belt to burn.