A.Ventilation

B.If there is a bad environment around it (such as dust or moisture)

C.Equipment installation distance

D.Ambient temperature

A.The return air temperature or fan speed fluctuates greatly

B.Equipment drainage capacity is significantly reduced

C.Temperature and humidity sensor cannot detect temperature and humidity

D.Water leakage at the bottom of the equipment

A.WiFi converter

B.IVS client

C.ECC800

D.Smart ETH socket

A.The humidifier circuit breaker is disconnected.

B.The humidifier cylinder is damaged.

C.The indoor temperature is low.

D.The outdoor unit is not running

A.Perform "shut down operation" on all UPS

B.Perform "shut down operation" on the UPS twice.

C.Turn off the input circuit breaker of the UPS

D.Perform "shut down operation" on the UPS only once