Index: firmware/App/Services/SystemCommMessages.c
===================================================================
diff -u -r01470ee3c64ededcc77a4f7378e49013a7ee5602 -r98e24f0db83de34e3d44c4bd72df9f506f8ceddc
--- firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 01470ee3c64ededcc77a4f7378e49013a7ee5602)
+++ firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 98e24f0db83de34e3d44c4bd72df9f506f8ceddc)
@@ -23,6 +23,7 @@
 #include "AlarmLamp.h"
 #include "Buttons.h"
 #include "ConsumableSelfTest.h"
+#include "Fans.h"
 #include "FPGA.h"
 #include "ModeStandby.h"
 #include "ModeTreatmentParams.h"
@@ -7145,4 +7146,35 @@
     sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, result );
 }
 
+/*********************************************************************//**
+ * @brief
+ * The handleFansRPMOverride function handles a request to override a fans RPM value.
+ * @details Inputs: none
+ * @details Outputs: message handled
+ * @param message a pointer to the message to handle
+ * @return none
+ *************************************************************************/
+void handleFansRPMOverride( MESSAGE_T *message )
+{
+    TEST_OVERRIDE_ARRAY_PAYLOAD_T payload;
+    BOOL result = FALSE;
+
+    // verify payload length
+    if ( sizeof(TEST_OVERRIDE_ARRAY_PAYLOAD_T) == message->hdr.payloadLen )
+    {
+        memcpy( &payload, message->payload, sizeof(TEST_OVERRIDE_ARRAY_PAYLOAD_T) );
+        if ( FALSE == payload.reset )
+        {
+            result = testSetFanRPMOverride( payload.index, payload.state.f32 );
+        }
+        else
+        {
+            result = testResetFanRPMOverride( payload.index );
+        }
+    }
+
+    // respond to request
+    sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, result );
+}
+
 /**@}*/