Index: firmware/App/Controllers/Valves.c
===================================================================
diff -u -rd9d085cdca67200ecddbdfbc75c489e704b23081 -r61153247029a9a246ca1beadc66d772e3e583e4e
--- firmware/App/Controllers/Valves.c	(.../Valves.c)	(revision d9d085cdca67200ecddbdfbc75c489e704b23081)
+++ firmware/App/Controllers/Valves.c	(.../Valves.c)	(revision 61153247029a9a246ca1beadc66d772e3e583e4e)
@@ -256,6 +256,9 @@
     {
         valvesStatus[ valve ].execState = VALVE_STATE_WAIT_FOR_POST;
     }
+
+    // close air trap valve
+    setValveAirTrap( STATE_CLOSED );
 }
 
 /*********************************************************************//**