Index: firmware/App/Controllers/LoadCell.c
===================================================================
diff -u -r69a0d10f21ce28bec3b07ae275fb74b2f4dd5140 -r6be821de57d67cf638e4da6dbbda72b293bd091e
--- firmware/App/Controllers/LoadCell.c	(.../LoadCell.c)	(revision 69a0d10f21ce28bec3b07ae275fb74b2f4dd5140)
+++ firmware/App/Controllers/LoadCell.c	(.../LoadCell.c)	(revision 6be821de57d67cf638e4da6dbbda72b293bd091e)
@@ -360,7 +360,7 @@
     {
         // For the first tare, the weight of the reservoir should be considered so the weight tolerance is bigger
         // The current weight of the load cell should not be greater than the weight of the reservoir + the extra weight
-        isWeightOutOfRange = ( weight > MAX_ALLOWED_EXTRA_WEIGHT_BEFORE_FIRST_TARE_GRAMS ? TRUE : FALSE );
+        isWeightOutOfRange = ( fabs( weight ) > MAX_ALLOWED_EXTRA_WEIGHT_BEFORE_FIRST_TARE_GRAMS ? TRUE : FALSE );
     }
     else
     {