Index: firmware/App/Modes/OperationModes.c
===================================================================
diff -u -ref6283257df7c1f993d58fb934da57ea3e0a7067 -ree17705b7751bc120442868ca6637ae3fde05049
--- firmware/App/Modes/OperationModes.c	(.../OperationModes.c)	(revision ef6283257df7c1f993d58fb934da57ea3e0a7067)
+++ firmware/App/Modes/OperationModes.c	(.../OperationModes.c)	(revision ee17705b7751bc120442868ca6637ae3fde05049)
@@ -163,7 +163,7 @@
             // If the last mode is treatment but the new mode is not treatment
             // it means the treatment is done. Get the elapsed time since the beginning of the treatment and convert it to hours to be written
             U32 txElapsedTimeMS  = calcTimeSince( getTreatmentStartTimeStamp() );
-            F32 txElapsedTimeHrs = (F32)txElapsedTimeMS / ( MIN_PER_HOUR * SEC_PER_MIN * MS_PER_SECOND );
+            F32 txElapsedTimeHrs = (F32)txElapsedTimeMS / ( (F32)( MIN_PER_HOUR * SEC_PER_MIN * MS_PER_SECOND ) );
             // Write the treatment hours and set the service to be false so the treatment hours is not reset
             setTxTimeHours( txElapsedTimeHrs );
         }