What should I do before operating the washing machine for the first time?

You must remove the 4 transit bolts along with the rubber bungs by slightly twisting the bung, as they are installed to prevent internal damage during transport. If the transit bolts are not removed, it may cause heavy vibration, noise, and malfunction. After removal, close the holes with the caps supplied and keep the bolts and spanner for future use when the appliance needs to be transported.