Index: firmware/App/Modes/ModeService.c
===================================================================
diff -u -r4bd3bf3483660050d3026f7f9adff43782bfc620 -r2d4653fb5bd6b087b5e17d143b55249b7142fa07
--- firmware/App/Modes/ModeService.c	(.../ModeService.c)	(revision 4bd3bf3483660050d3026f7f9adff43782bfc620)
+++ firmware/App/Modes/ModeService.c	(.../ModeService.c)	(revision 2d4653fb5bd6b087b5e17d143b55249b7142fa07)
@@ -17,6 +17,7 @@
 
 #include "ConcentratePumps.h"
 #include "CPLD.h"
+#include "LoadCell.h"
 #include "ModeService.h"
 #include "OperationModes.h"
 
@@ -59,6 +60,11 @@
     deenergizeActuators( NO_PARK_CONC_PUMPS );
     initServiceMode();
     setCurrentSubState( NO_SUB_STATE );
+    resetLoadCellOffset( LOAD_CELL_RESERVOIR_1_PRIMARY );
+    resetLoadCellOffset( LOAD_CELL_RESERVOIR_1_BACKUP );
+    resetLoadCellOffset( LOAD_CELL_RESERVOIR_2_PRIMARY );
+    resetLoadCellOffset( LOAD_CELL_RESERVOIR_2_BACKUP );
+
     return serviceState;
 }