Huawei Three-Phase String Inverter SUN2000-110KTL-M2

Power off the inverter before replacing the fan

Use insulation tools and wear personal protective devices

Remove the screw on the fan tray and save it

Pull out the fan tray until the fan baffle plate aligns with the inverter chassis

Remove the cable ties shared by the cables

Unscrew the connectors and disconnect the cables

Disconnect both AC and DC connections

Disconnect all cables from the SUN2000

Remove the SUN2000 from the mounting bracket

Vegetation Inspection and Weeding

Inspect the area around the inverters for vegetation growth

Clean the site promptly after weeding

Is it the local wilting season?

Power off the system and ensure all DC switches on the solar inverter are OFF.

Ensure protective measures are in place if maintenance is performed during rainy or snowy days.

Cleanness of Air Intake and Exhaust Vents, and Fans

Check for dust on the air intake and exhaust vents and clean if necessary.

Check for abnormal sounds from the fans during operation.

Ensure the solar inverter is not damaged or deformed.

Check that the solar inverter operates with no abnormal sound.