Thank you for the model number.
E43 error in Bosch washing machine indicate motor circuit error usually caused due to bad motor, fault in wiring harness or the control board itself that is bad and will need replacement.
Please try this to reset your appliance:
-Turn the appliance knob to the 'off' or reset position, 12 o'clock.
-Turn the knob to the 6 o'clock position.
-Press and hold the spin reduce button thats under the spin speed lights.
-Whilst holding it, turn the knob to the 7 o'clock position.
-Continue holding the spin button for about 5 seconds.
-Release the button.
-Turn the knob to off.
This should clear the error code however, if it is displayed again check the carbon brushes in motor.
If the brushes are fine you will have to likely replace the motor.
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