System One Part Washer PRINTED CIRCUIT BOARD PCB. IT LOOKS IN GOOD CONDITION. WE CAN NOT TEST. IF IT DOSE NOT WORK DO NOT TRY TO FIX IT JUST SEND IT VACK AND I WILL REFUND YOU YOUR MONEY. WE ARE DISASEMBLING 6 OF THIS MACHINES LOOK AT MY OTHER AUCTIONS OR ASK FOR SPECIFIC PARTS.