Index: firmware/App/Controllers/Fans.c
===================================================================
diff -u -r61716bc97ecca8af1ec560333844a8cf602eccb0 -r2892e3f528d76f45719b7124358e9d242bf27172
--- firmware/App/Controllers/Fans.c	(.../Fans.c)	(revision 61716bc97ecca8af1ec560333844a8cf602eccb0)
+++ firmware/App/Controllers/Fans.c	(.../Fans.c)	(revision 2892e3f528d76f45719b7124358e9d242bf27172)
@@ -88,6 +88,12 @@
 static OVERRIDE_U32_T fansPublishInterval = { FANS_DATA_PUBLISH_INTERVAL,
                                               FANS_DATA_PUBLISH_INTERVAL, 0, 0 };                  ///< Fans publish time interval override
 
+// TODO for testing remove
+BOOL isTest = FALSE;
+U32 alarmTime = 0;
+U32 alarmElapsed = 0;
+// TODO for testing remove
+
 static FANS_EXEC_STATES_T handleExecStateWaitForPOST( void );
 static FANS_EXEC_STATES_T handleExecStateRun( void );
 
@@ -135,6 +141,12 @@
         fansStatus.rpm[ fan ].override   = OVERRIDE_RESET;
     }
 
+    // TODO for testing remove
+    isTest = FALSE;
+    alarmTime = 0;
+    alarmElapsed = 0;
+    // TODO for testing remove
+
     // Initialize a persistent alarm for fans RPM out of range
     initPersistentAlarm( ALARM_ID_HD_FAN_RPM_OUT_OF_RANGE, FANS_MAX_ALLOWED_RPM_OUT_OF_RANGE_INTERVAL, FANS_MAX_ALLOWED_RPM_OUT_OF_RANGE_INTERVAL );
 }
@@ -427,6 +439,17 @@
     {
         rpm                 = getMeasuredFanRPM( fan );
         isFanRPMOutOfRange |= ( ( rpm < fansMinAllowedRPM ) || ( rpm > fansMaxAllowedRPM ) ? TRUE : FALSE );
+
+        // TODO test code
+        if ( (TRUE == isFanRPMOutOfRange) && (alarmTime == 0) )
+        {
+            alarmTime = getMSTimerCount();
+        }
+        else if ( FALSE == isFanRPMOutOfRange)
+        {
+            alarmTime = 0;
+        }
+        // TODO test code
     }
 
     if ( FALSE == hasAlarmBeenRaised )
@@ -438,6 +461,8 @@
             SET_ALARM_WITH_1_F32_DATA( ALARM_ID_HD_FAN_RPM_OUT_OF_RANGE, rpm )
             // Set the alarm flag to TRUE
             hasAlarmBeenRaised = TRUE;
+
+            alarmElapsed = calcTimeSince(alarmTime); // TODO test code
         }
         // If the alarm has been raised but the start time of the alarm has not been set, set the alarm start timer
         if ( ( TRUE == hasAlarmBeenRaised ) && ( 0 == rpmAlarmStartTime ) )
@@ -511,6 +536,7 @@
         data.fansTargetRPM      = fansStatus.targetRPM;
         data.fanInlet1RPM       = getMeasuredFanRPM( FAN_INLET_1 );
         data.rpmAlarmTimeOffset = getRPMAlarmStartTimeOffset();
+        data.alarmElapsedTime   = alarmElapsed;
 
         broadcastData( MSG_ID_HD_FANS_DATA, COMM_BUFFER_OUT_CAN_HD_BROADCAST, (U08*)&data, sizeof( FANS_DATA_T ) );