Index: firmware/App/Modes/ModeFault.c
===================================================================
diff -u -r3ebd93b5235d4fde813ce09d15fa5fd163ca0902 -r5398b91c33e6fd39a74dbe132e50120965ef4107
--- firmware/App/Modes/ModeFault.c	(.../ModeFault.c)	(revision 3ebd93b5235d4fde813ce09d15fa5fd163ca0902)
+++ firmware/App/Modes/ModeFault.c	(.../ModeFault.c)	(revision 5398b91c33e6fd39a74dbe132e50120965ef4107)
@@ -188,7 +188,6 @@
     setValveStateDelayed( D40_VALV, VALVE_STATE_CLOSED, DELAY_VALVE_MS );
     setValveStateDelayed( D47_VALV, VALVE_STATE_CLOSED, DELAY_VALVE_MS );
     setValveStateDelayed( D3_VALV, VALVE_STATE_CLOSED, DELAY_VALVE_MS );
-    setValveStateDelayed( M4_VALV, VALVE_STATE_CLOSED, DELAY_VALVE_MS );
 
     // De-energize Balancing chamber and Ultrafiltration valves
     for ( i = FIRST_BC_VALVE; i <= LAST_BC_VALVE; i++ )
@@ -237,7 +236,6 @@
     setValveStateDelayed( D40_VALV, VALVE_STATE_CLOSED, DELAY_VALVE_MS );
     setValveStateDelayed( D47_VALV, VALVE_STATE_CLOSED, DELAY_VALVE_MS );
     setValveStateDelayed( D3_VALV, VALVE_STATE_CLOSED, DELAY_VALVE_MS );
-    setValveStateDelayed( M4_VALV, VALVE_STATE_CLOSED, DELAY_VALVE_MS );
 
     // De-energize portion of balancing chamber valves.
     setValveStateDelayed( D19_VALV, VALVE_STATE_CLOSED, DELAY_VALVE_MS );