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Replacing a Module
Prerequisites
- A main control module or PSU needs to be replaced.
- A spare main control module or PSU of the same model is available and functional.
Context
- The new module must be installed in the same slot as the faulty module. Otherwise, the smart cooling product may fail to work properly.
- Before replacing a main control module, disconnect the cables from the main control module. After replacing it, download the software and ACC Software Upgrade Guide from Huawei website, and upgrade it on the LCD.
The module can be maintained only from the rear door.
Figure 11-43 Module
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(1) Main control module |
(2) Reserved |
(3) PSU 1 |
(4) PSU 2 |
Procedure
- Tap Shutdown on the controller home screen.
Exercise caution because the device is still energized after it is shut down on the controller home screen.
- Open the rear door and remove the air filter.
- Turn off the active power switch QF1 and standby power switch QF2. (For the model with a single power supply, you do not need to switch off QF2.)
- Flip the clip on the module downwards, as shown by (1) in Figure 11-44.
- Take out the handle and pull out the module from the subrack, as shown by (2) in Figure 11-44.
When installing a new module, ensure that the handle in the upper part of the power module, and the HUAWEI logo is in the lower left of the module.
- Insert the spare module into the corresponding slot, and flip the clip upwards to lock the module.Figure 11-45 Locking a module
- Install the network cable and air filter, and close the rear door.
- Power on the device and tap Start on the home screen. Ensure that the smart cooling product is running normally without any alarms.
