Index: firmware/App/Controllers/PresOccl.c
===================================================================
diff -u -r736cc5b56cc9c784ab1d8fc8687a73d190c35759 -rb4337dc5afaca148dd23c0c4021875563b565739
--- firmware/App/Controllers/PresOccl.c	(.../PresOccl.c)	(revision 736cc5b56cc9c784ab1d8fc8687a73d190c35759)
+++ firmware/App/Controllers/PresOccl.c	(.../PresOccl.c)	(revision b4337dc5afaca148dd23c0c4021875563b565739)
@@ -676,6 +676,7 @@
                 stabilizationStartTimeMs = getMSTimerCount();
                 useShortStabilizeTime = USE_NORMAL_STABILIZATION_PERIOD;
                 currPresLimitsState = PRESSURE_LIMITS_STATE_STABILIZATION;
+                signalAirTrapValveOpen();
             }
             break;