Troubleshooting （Grinder can not work） 1. Long-time working may cause the machine to stop working. To prevent overheating, do not operate the appliance continuously for more than 1 minute. Leave to cool for 3 minutes after every batch of operation. 2. The grinding wheel was not locked into position. Please turn the Grinding Wheel counterclockwise to lock it into position. When the grinding wheel is locking there will be a “ticking” sound. 3. The micro switch of the bean hopper and the coffee powder container might be in poor contact. Plese try to install these 2 parts again.