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SecureStack fan speed Increasing and decreasing multiple times a day without temperature being a factor

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Information

 
TitleSecureStack fan speed Increasing and decreasing multiple times a day without temperature being a factor
Symptoms
SecureStack fan speed Increasing and decreasing multiple times a day without temperature being a factor
Environment
  • SecureStack
  • C5-Series
  • B5-Series
  • Firmware Version 06.41.xx firmware
  • Fan RPM / Speed issue
  • Loud Fan
Cause
  • There was a known issue with the fan sensor tripping at incorrect values and constantly increasing and decreasing speeds on a daily basis.
  • Release note for this issue is shown as fixed in firmware code 06.42.01.0046:
14463 The fan controller speed will now switch to high when temperature rises above the high temperature trip point threshold value.
Resolution
  • Upgrade to 06.42.xx or later
  • Some replacement switches may be shipped with 06.41.xx code.
Additional notes

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