Index: firmware/App/Controllers/AirTrap.c
===================================================================
diff -u -rd3b7ae356aae29c99cb039713a2e120fdbce5a9c -re5d1d67106a93a6cd1b5692b586625d715732e2f
--- firmware/App/Controllers/AirTrap.c	(.../AirTrap.c)	(revision d3b7ae356aae29c99cb039713a2e120fdbce5a9c)
+++ firmware/App/Controllers/AirTrap.c	(.../AirTrap.c)	(revision e5d1d67106a93a6cd1b5692b586625d715732e2f)
@@ -49,15 +49,6 @@
     NUM_OF_AIR_TRAP_STATES                  ///< Number of air trap controller states
 } AIR_TRAP_STATE_T;
 
-/// Defined states for the air trap self-test state machine.
-typedef enum AirTrap_Self_Test_States
-{
-    AIR_TRAP_SELF_TEST_STATE_START = 0,     ///< Self-test start state
-    AIR_TRAP_SELF_TEST_STATE_IN_PROGRESS,   ///< Self-test in progress state
-    AIR_TRAP_SELF_TEST_STATE_COMPLETE,      ///< Self-test completed state
-    NUM_OF_AIR_TRAP_SELF_TEST_STATES        ///< Number of air trap self-test states
-} AIR_TRAP_SELF_TEST_STATE_T;
-
 // ********** private data **********
 
 static AIR_TRAP_STATE_T airTrapControllerState;                                             ///< Current state of air trap controller state machine.
@@ -66,9 +57,6 @@
 /// Interval (in ms) at which to publish air trap data to CAN bus.
 static OVERRIDE_U32_T airTrapDataPublishInterval = { AIR_TRAP_DATA_PUB_INTERVAL, AIR_TRAP_DATA_PUB_INTERVAL, 0, 0 };
 static OVERRIDE_U32_T airTrapLevels[ NUM_OF_AIR_TRAP_LEVEL_SENSORS ];                       ///< Detected air trap level for each level sensor.
-
-static AIR_TRAP_SELF_TEST_STATE_T airTrapSelfTestState;                                     ///< Current air trap self-test state.
-static U32 airTrapSelfTestTimerCount = 0;                                                   ///< Timer counter for air trap self-test.
 
 static BOOL pendingStartAirTrapController = FALSE;                                          ///< Flag indicates an air trap controller start request is pending.
 static BOOL pendingStopAirTrapController = FALSE;                                           ///< Flag indicates an air trap controller stop request is pending.
@@ -95,7 +83,6 @@
 void initAirTrap( void )
 {
     resetAirTrap();
-    airTrapSelfTestState = AIR_TRAP_SELF_TEST_STATE_START;
     airTrapIllegalLevelSensorsCtr = 0;
 }