Huawei LUNA2000-200KWH-2H1 - Replacing an Air Conditioner Main Control Board

Figure 8-9 Removing the external fan
Step 4 Install a new external fan.
Step 5 Connect and arrange the external fan cable bundle.
Step 6 Install the rear cover.
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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 external fan.
Function The rotation speed is adjusted automatically according
to the condensing pressure.
Running data External fan status: standby when no cooling is
required, and normal when cooling is required.
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8.3 Replacing an Air Conditioner Main Control Board
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: at-head or Phillips insulated torque screwdriver, multimeter
● Power-o: Turn o the power switch of the air conditioner in the cabinet.
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. 97