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Case Study: Lack of Heat Dissipation Design During Installation Causes an AP to Fail to Operate Properly Due to High Temperature
Symptom
The internal temperature of an AP is too high, affecting the normal operation of the AP.
Relevant Alarms and Logs
None
Cause Analysis
- As shown in Figure 5-1, two central APs are stacked in the cabinet/rack and no space is reserved between them. This affects heat dissipation of the APs and may cause high temperature inside the APs.
- As shown in Figure 5-2, you can check whether a fan is working properly by holding a piece of paper at the air exhaust vent of the fan. If the paper is blown by the wind, the fan is working properly. If the paper does not move, the fan is not working properly. In this case, check the fan.
Procedure
- Reserve 1 U space between two APs in a cabinet/rack for heat dissipation.
- Rectify the fans in the cabinet/rack to ensure that the fans are working properly and the APs dissipate heat properly.
Suggestion and Summary
APs can work properly only when the ambient temperature is within a certain range. If the APs are stacked, the heat dissipation of the cabinet is abnormal, or the temperature in the equipment room is too high, the APs may be affected. Therefore, heat dissipation must be carefully considered during AP installation.