Replacing An Air Conditioner Main Control Board - Huawei LUNA2000-200KWH-2H1 Maintenance Manual

LUNA2000-200KWH-2H1 Smart String ESS
Maintenance Manual
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
Alarm information
Function
Running data
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8.3 Replacing an Air Conditioner Main Control Board

Prerequisites
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Issue 02 (2023-02-28)
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: flat-head or Phillips insulated torque screwdriver, multimeter
Power-off: Turn off the power switch of the air conditioner in the cabinet.
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Criteria
There is no alarm related to the external fan.
The rotation speed is adjusted automatically according
to the condensing pressure.
External fan status: standby when no cooling is
required, and normal when cooling is required.
8 Replacing an Air Conditioner
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