Index: firmware/App/Controllers/Fans.c
===================================================================
diff -u -rb66dabe73c8418e0e4ee358ce787b6d9bd9e128e -rfe4bcb2c7b5a0ef8d30fd84750ec2c4256db03e2
--- firmware/App/Controllers/Fans.c	(.../Fans.c)	(revision b66dabe73c8418e0e4ee358ce787b6d9bd9e128e)
+++ firmware/App/Controllers/Fans.c	(.../Fans.c)	(revision fe4bcb2c7b5a0ef8d30fd84750ec2c4256db03e2)
@@ -8,6 +8,7 @@
 #include "SystemCommMessages.h"
 #include "TaskGeneral.h"
 #include "Temperatures.h"
+#include "Timers.h"
 
 /**
  *  @addtogroup Fans
@@ -61,7 +62,8 @@
 static U32 fansPublishCounter = 0;                                                                 ///< Fans data publish interval counter.
 static U32 fansMonitorCounter = 0;                                                                 ///< Fans monitor interval counter.
 static BOOL isPOSTComplete = FALSE;                                                                ///< Flag that indicates whether POST is complete or not.
-static BOOL hasAlarmBeenRaised = FALSE;                                                             ///< Flag that indicates whether RPM out of range alarm has been raised once.
+static BOOL hasAlarmBeenRaised = FALSE;                                                            ///< Flag that indicates whether RPM out of range alarm has been raised once.
+static U32 rpmAlarmStartTimer = 0;                                                                 ///< RPM out of range alarm start timer when the alarm is raised.
 
 /// Temperature to duty cycle conversion slope (duty cycle not in percent)
 static const F32 SLOPE = ( FANS_MAX_DUTY_CYCLE - FANS_MIN_DUTY_CYCLE ) / ( MAX_ALLOWED_AMBINET_TEMPERATURE - MIN_ALLOWED_AMBIENT_TEMPERATURE );
@@ -86,7 +88,8 @@
  * The initFans function initializes the fans module.
  * @details Inputs: none
  * @details Outputs: fansExecState, fansMonitorCounter, fansControlCounter,
- * fansPublishCounter, isPOSTComplete, hasAlarmBeenRaised, fansStatus
+ * fansPublishCounter, isPOSTComplete, hasAlarmBeenRaised, fansStatus,
+ * rpmAlarmStartTimer
  * @return none
  *************************************************************************/
 void initFans( void )
@@ -100,6 +103,7 @@
     fansMonitorCounter = 0;
     isPOSTComplete     = FALSE;
     hasAlarmBeenRaised = FALSE;
+    rpmAlarmStartTimer = 0;
 
     // Initialize the fans
     for ( fan = FAN_INLET_1; fan < NUM_OF_FANS_NAMES; fan++ )
@@ -380,8 +384,8 @@
 /*********************************************************************//**
  * @brief
  * The monitorFans function monitors the fans for RPM.
- * @details Inputs: fansStatus
- * @details Outputs: none
+ * @details Inputs: fansMonitorCounter, rpmAlarmStartTimer, hasAlarmBeenRaised
+ * @details Outputs: fansMonitorCounter, hasAlarmBeenRaised, rpmAlarmStartTimer
  * @return none
  *************************************************************************/
 static void monitorFans( void )
@@ -407,8 +411,18 @@
 
                 // If the RPM out of range alarm has been raised, do not raise it again, until its alarm silence time has been elapsed
                 hasAlarmBeenRaised = ( TRUE == isAlarmActive( ALARM_ID_HD_FAN_RPM_OUT_OF_RANGE ) ? TRUE : FALSE );
+
+                if ( ( TRUE == hasAlarmBeenRaised ) && ( 0 == rpmAlarmStartTimer ) )
+                {
+                    rpmAlarmStartTimer = getMSTimerCount();
+                }
             }
         }
+        else if ( ( TRUE == hasAlarmBeenRaised ) && ( TRUE == didTimeout( rpmAlarmStartTimer, SECONDS_IN_A_DAY ) ) )
+        {
+            hasAlarmBeenRaised = FALSE;
+            rpmAlarmStartTimer = 0;
+        }
 
         fansMonitorCounter = 0;
     }