115 Troubleshooting GuideSymptom Possible Cause Countermeasure• Motor fails to Armature Assy Or hummingnoise is head1. Motor(Armature Assy. Field Assy) defec-tive.2. Wiring connection improper3. Switch defective4. Cord U broken5. The current breaking function of switchis on6. Motor short-circuitted7. Wear of Brush Assy1. Replace Motor(Armature Assy, Field Ass'y)2. Correct it3. Replace Switch4. Replace Cord U5. Push “OFF” and then “ON” of Switch6. Replace Motor(Armature Assy, Field assy)7. Replace the two Brush Assy at the sametime• Cutter Assy fails to rotate 1. Cutter Assy shaft seizes up2. Wear of Connector1. Replace Cutter Assy and Cup Base Assy2. Replace Connector(Upper or lower)• Noises and vibrations are observed 1. Fastened conditions of screws improper2. Cutter Assy deformed3. Motor Shaft eccentric4. Assembly of Juice Cup improper or fas-tened conditions of Cup Base Assy toJuice cup improper.1. Fasten tightly2. Replace Cutter Assy3. Replace armature Assy4. Reassemble properly• Juice or other material leaks 1. Juice cup cracked2. Packing improperly fixed3. Packing damaged4. Juice cup and Cup Base Assy insuffi-ciently fastened1. Replace Juice cup2. Properly fix Packing3. Replace Packing4. Fasten them firmly• Current Breaking Function of Switch Assyfails and cause motor burningBreaker of Switch Assy short-circuited Replace both Motor(Armature Ass'y and FieldAssy) and Switch Ass'y