https://community.extremenetworks.com/t5/faqs/d-series-f-w-6-03-10-0003-erroneously-reports-fan-failure-error/m-p/45922#M357 Article ID: 14536 <BR /> <BR /> <B>Products</B><BR /> D-Series, firmware 6.03.10.0003 and lower<BR /> D2G124-12, D2G124-12P <BR /> <BR /> <B>Symptoms</B><BR /> Fan Failure messages and traps are sent to the console, logs, and network management; for example:<BR /> <DIV class="threadCode"><B>code:</B><PRE spellcheck="false">Jan 5 08:00:47 172.16.21.201-1 SIM[67451624]: hwutils.c(4292) 62397 %% FAN2-is NOT Functional</PRE></DIV><BR /> <BR /> <B>Cause</B><BR /> With this product; the fans only run occasionally, when needed for cooling under relatively extreme conditions (<A href="http://bit.ly/1cbEWcE" target="_blank" rel="nofollow noreferrer noopener">14554</A>). <BR /> <BR /> It is possible for the fans to have just hardware-cycled off, but the software has not yet detected it. During the period of time in which the fan status is still listed as "Ok" yet the fans are no longer spinning, the system may in error report a "FAN1-is NOT Functional" or "FAN2-is NOT Functional" condition. <BR /> <BR /> <B>Solution/Workaround</B><BR /> Upgrade to firmware 6.03.11.0004 or higher.<BR /> If the symptoms persist after upgrade, then please <A href="http://www.extremenetworks.com/support/contact/" target="_blank" rel="nofollow noreferrer noopener">contact the GTAC</A> for assistance. <BR /> <BR /> Workaround:<BR /> Manually determine whether or not the switch fans have failed, based on either non-operation during system boot or non-operation while the system is hot. Thu, 05 Dec 2013 04:50:00 GMT FAQ_User 2013-12-05T04:50:00Z https://community.extremenetworks.com/t5/faqs/d-series-f-w-6-03-10-0003-erroneously-reports-fan-failure-error/m-p/45922#M357 Article ID: 14536 <BR /> <BR /> <B>Products</B><BR /> D-Series, firmware 6.03.10.0003 and lower<BR /> D2G124-12, D2G124-12P <BR /> <BR /> <B>Symptoms</B><BR /> Fan Failure messages and traps are sent to the console, logs, and network management; for example:<BR /> <DIV class="threadCode"><B>code:</B><PRE spellcheck="false">Jan 5 08:00:47 172.16.21.201-1 SIM[67451624]: hwutils.c(4292) 62397 %% FAN2-is NOT Functional</PRE></DIV><BR /> <BR /> <B>Cause</B><BR /> With this product; the fans only run occasionally, when needed for cooling under relatively extreme conditions (<A href="http://bit.ly/1cbEWcE" target="_blank" rel="nofollow noreferrer noopener">14554</A>). <BR /> <BR /> It is possible for the fans to have just hardware-cycled off, but the software has not yet detected it. During the period of time in which the fan status is still listed as "Ok" yet the fans are no longer spinning, the system may in error report a "FAN1-is NOT Functional" or "FAN2-is NOT Functional" condition. <BR /> <BR /> <B>Solution/Workaround</B><BR /> Upgrade to firmware 6.03.11.0004 or higher.<BR /> If the symptoms persist after upgrade, then please <A href="http://www.extremenetworks.com/support/contact/" target="_blank" rel="nofollow noreferrer noopener">contact the GTAC</A> for assistance. <BR /> <BR /> Workaround:<BR /> Manually determine whether or not the switch fans have failed, based on either non-operation during system boot or non-operation while the system is hot. Thu, 05 Dec 2013 04:50:00 GMT https://community.extremenetworks.com/t5/faqs/d-series-f-w-6-03-10-0003-erroneously-reports-fan-failure-error/m-p/45922#M357 FAQ_User 2013-12-05T04:50:00Z