Index: firmware/App/Modes/ModeTreatment.c
===================================================================
diff -u -r1a0f474822fc70eba7b3d44e4d96cf6578de71bd -rd2c7bd1335e46c131c9f37b2e6ec824faaf62889
--- firmware/App/Modes/ModeTreatment.c	(.../ModeTreatment.c)	(revision 1a0f474822fc70eba7b3d44e4d96cf6578de71bd)
+++ firmware/App/Modes/ModeTreatment.c	(.../ModeTreatment.c)	(revision d2c7bd1335e46c131c9f37b2e6ec824faaf62889)
@@ -1025,14 +1025,15 @@
     {
         // Always adjust UF volume to accommodate treatment time change (not UF rate)
         F32 uFVolume          = ( (F32)( treatmentTime - CALC_ELAPSED_TREAT_TIME_IN_MIN() ) * presUFRate ) + getUltrafiltrationReferenceVolume();
+        F32 uFVolumeL         = uFVolume / ML_PER_LITER;
         U32 dialVolume        = getTreatmentParameterU32( TREATMENT_PARAM_DIALYSATE_FLOW ) * treatmentTime;   // In mL
         // The minimum treatment time is either in the range of the institutional record or the 1-minute treatment config has been requested which is an exception
         BOOL isMinTxTimeValid = ( ( treatmentTime >= getU32TreatmentParamLowerRangeLimit( TREATMENT_PARAM_TREATMENT_DURATION ) ) ||
                                   ( TRUE == getTestConfigStatus( TEST_CONFIG_ENABLE_ONE_MINUTE_TREATMENT ) ) ? TRUE : FALSE );
         BOOL isTxTimeValid    = ( ( TRUE == isMinTxTimeValid ) &&
                                   ( treatmentTime <= getU32TreatmentParamUpperRangeLimit( TREATMENT_PARAM_TREATMENT_DURATION ) ) ? TRUE : FALSE );
-        BOOL isMinUFVolValid  = ( ( uFVolume >= getF32TreatmentParamLowerRangeLimit( TREATMENT_PARAM_UF_VOLUME ) ) || ( uFVolume <= 0.0F ) ? TRUE : FALSE );
-        BOOL isUFVolValid     = ( ( TRUE == isMinUFVolValid ) && ( uFVolume <= getF32TreatmentParamUpperRangeLimit( TREATMENT_PARAM_UF_VOLUME ) ) ? TRUE : FALSE );
+        BOOL isMinUFVolValid  = ( ( uFVolumeL >= getF32TreatmentParamLowerRangeLimit( TREATMENT_PARAM_UF_VOLUME ) ) || ( uFVolumeL <= 0.0F ) ? TRUE : FALSE );
+        BOOL isUFVolValid     = ( ( TRUE == isMinUFVolValid ) && ( uFVolumeL <= getF32TreatmentParamUpperRangeLimit( TREATMENT_PARAM_UF_VOLUME ) ) ? TRUE : FALSE );
 
         if ( ( TRUE == isTxTimeValid ) && ( dialVolume <= MAX_DIALYSATE_VOLUME_ML ) && ( TRUE == isUFVolValid ) )
         {