Vertiv | Liebert LVC | User Manual 30
Maintenance and Troubleshooting
2. Clean the ns of the heat exchanger with ns detergent, if the condenser airow is blocked.
3. Check for damaged ns and maintain them in time.
4. Avoid snow accumulation around the condenser in winter.
• The cleaning agent should not contain acidic composition.
• Fan
Check that the fan runs smoothly. Observe the issues such as abnormal noise, vibration and failure of
bearing.
• Fan speed controller
Check that the fan speed controller board operates normally. If not, replace it as illustrated in Figure 5-2.
• Take a note, the positions of the bolt installation holes on the fan speed controller could
be dierent on the actual product.
The fan speed controller is inside the electrical control box, refer to Figure 5-2 to remove the fan speed
controller board, there are 4 screws in each corner of the controller box.
Figure 5-2 Removing the Fan Speed Controller Board
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