1. The internal dust is not cleaned regularly, resulting in too much dust inside the machine, the dust filter screen is blocked by dust, and the high temperature inside the machine cannot be ventilated and cooled normally. The temperature control group of the machine automatically alarms and shuts down.
2. If there is no signal input after the set time, the automatic shutdown setting will be cancelled.
3. Most of the problems with light bulbs are caused by improper operation by users, such as continuous switching and long-time opening. The only solution is to change a new light bulb.