Clean the filter screen regularly (recommended frequency: once a month, or once a week in dusty environments).
Check fan bearing lubrication (replenish lubricant every 6 months).
Monitor internal cabinet temperature (installation of a temperature alarm is recommended, with the threshold set at 50°C).
Routine inspections (monthly): Check for abnormal noises or odors; inspect cabinet door indicator lights and touchscreens for fault alarms; verify that cooling fans are rotating properly and dust filters are free of heavy dust accumulation; check for condensation or water ingress; record operating temperatures.
Quarterly maintenance: Clean dust from the cabinet exterior and dust filters; inspect door gaskets for aging or damage; check the integrity of the door grounding wire; review historical alarm records and analyze potential issues causing frequent alarms.