Follow-up Procedure
Step 1 Turn on the power switch of the air conditioner in the cabinet.
Step 2 Check whether the functions are restored.
Check Item Criteria
Alarm information There is no alarm related to the internal fan.
Function Low-speed operation in air supply mode and high-
speed operation in cooling mode
Running data Internal fan status: normal operation
----End
8.2 Replacing an Air Conditioner External Fan
Prerequisites
● Fault locating:
a. Log in to the SmartLogger WebUI, CMU WebUI, FusionSolar app, or
management system to view alarm information.
b. Refer to the alarm handling suggestions in the alarm list.
● Tools: Phillips insulated torque screwdriver, insulated torque socket wrench,
T20 security torx screwdriver, multimeter, utility knife
●
Power-o: Turn o the power switch of the air conditioner in the cabinet.
The power loop of the ESS does not need to be powered o. You are advised to set
the ESS in standby or shutdown mode during replacement.
Procedure
Step 1 Remove the rear cover of the air conditioner, and use a dedicated T20 security torx
screwdriver to remove the two security torx screws from the bottom.
LUNA2000-200KWH-2H1 Smart String ESS
Maintenance Manual 8 Replacing an Air Conditioner
Issue 02 (2023-02-28) Copyright © Huawei Digital Power Technologies Co., Ltd. 95
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