Index: firmware/App/HDCommon.h
===================================================================
diff -u -r340ca3700bbc4235d85d82864597fe17ab4b557a -rf3326a3d0fd2a465a518e31ee578e335db301c27
--- firmware/App/HDCommon.h	(.../HDCommon.h)	(revision 340ca3700bbc4235d85d82864597fe17ab4b557a)
+++ firmware/App/HDCommon.h	(.../HDCommon.h)	(revision f3326a3d0fd2a465a518e31ee578e335db301c27)
@@ -25,7 +25,7 @@
 #define HD_VERSION_MAJOR        0
 #define HD_VERSION_MINOR        5
 #define HD_VERSION_MICRO        0
-#define HD_VERSION_BUILD        9012
+#define HD_VERSION_BUILD        9013
 
 // ********** development build switches **********
 
@@ -40,7 +40,7 @@
 //    #define DISABLE_ALARM_AUDIO             1           // Disable alarm audio
 //    #define SKIP_POST                       1           // Skip POST tests - all pass
 //    #define DONT_SKIP_NV_POST               1           // Do not skip NV Data POST
-//    #define DISABLE_AIR_TRAP_LEVELING       1           // Disable air trap level control
+    #define DISABLE_AIR_TRAP_LEVELING       1           // Disable air trap level control
 //    #define DISABLE_3WAY_VALVES             1           // Disable 3-way valves
 //    #define TST_3WAY_VALVES_ALWAYS_OPEN     1           // After POST and homing, open all 4 valves
     #define DISABLE_ACCELS                  1           // Disable accelerometer POST and monitoring