Customer Questions and Answers for Washer Motor Control Module by Bosch

Albert, this error would indicate either an unbalanced load or a miscommunication between the motor control module 00704135 and the main control 00677801. If the spin basket rotates freely and there is not an excess of clothes loaded, the wiring between the two controls would need to be inspected for any damage. If there is not a damaged wire, the most likely cause would be the motor control module.

Cedrick, the error ER24 is going to indicate that the power supply relay of the main control 00677801 has failed and is not able to properly send or stop voltage to the motor control module 00704135

Russ, if the spin basket will rotate freely by hand, the control module 00704135 can be tested for 120VAC incoming and 120VAC outgoing. If there is incoming voltage but no outgoing voltage, the module would need to be replaced. If there is outgoing voltage, replace the motor 00660487.

Rod, if the control module 00704135 is receiving operation and signal voltage and the motor tests good, the failure would be in the control module.