Why is the indicator of a fan module steady red or blinking red on CE switches

20

Possible Causes
1. The fan module is not installed properly in the fan slot.
2. Fan blades are blocked or stop rotating because of heavy dust.
3. The fan module is faulty.
Troubleshooting Procedure
1. Pull out the fan module and reinstall it to ensure that it is securely installed in the slot. (Fan modules are hot swappable.)
2. Remove the fan module from the chassis and check whether the fan blades are blocked or whether there is too much dust on the fan blades.
a. If fan blades are blocked by an obstacle, remove the obstacle.
b. If the fan blades have heavy dust, use a brush to clean them.
3. If the problem persists, install another fan module of the same model into the fan slot. If the new fan module can work properly, the original fan module has failed and needs to be replaced.

Other related questions:
Why the Fan Module Indicator is blinking red ?
An alarm has been generated and needs to be handled. Possible causes of the alarm include errors of dual in-line package (DIP) switches, short-circuit, fan blades blocked, and fault of the fan module.

Server red indicator on
If a server indicator is red, an alarm occurred. For details about the meanings of indicators of a specific server model, type the question in the format of "Product model + Indicator name + Status", for example, "RH2288 V3 HLY Blinking red."

What does it mean when the SYS indicator on the CE series switches is steady red
On the CE8800&CE7800&CE6800&CE5800 series switches (except the CE6850-48T4Q-EI), the steady red state of the SYS indicator means one of the following: - The system fails to start. - At least one power module does not work normally. - At least one fan module does not work normally. On the CE6850-48T4Q-EI, the steady red state of the SYS indicator means one of the following: - The system fails to start. - At least one power module does not work normally. - At least one fan module does not work normally. - The card power consumption exceeds the rated power of the power modules.

Why is the RUN indicator red
The device temperature exceeds the temperature alarm threshold or the fan is faulty. The PoE-support switches have a PWR indicator. If the PWR indicator is red, power supply is faulty. NOTE: Run the display environment command to view the temperature alarm threshold and the current temperature. Run the display fan verbose command to view the fan operating status. Run the display device command to view the power supply status.

In what conditions will the SYS indicator on AR routers be steady red
The SYS indicator on an AR router is steady on in the following conditions: -The device temperature is too high or too low. -The card temperature is too high or too low. -The system fails to obtain the device temperature consecutively three times. -The system fails to obtain the card temperature consecutively three times. -Fans are not available or have failed.

If you have more questions, you can seek help from following ways:
To iKnow To Live Chat
Scroll to top