Index: firmware/App/DDCommon.h
===================================================================
diff -u -r83801fb34ea084512961215be50b3558794ec88b -rbdf2c733a764466fcc4a0ff4938f5c97456bdb77
--- firmware/App/DDCommon.h	(.../DDCommon.h)	(revision 83801fb34ea084512961215be50b3558794ec88b)
+++ firmware/App/DDCommon.h	(.../DDCommon.h)	(revision bdf2c733a764466fcc4a0ff4938f5c97456bdb77)
@@ -53,17 +53,18 @@
 
 //Uncomment below to disable revised heater model
 #define __REVISED_HEATER_MODEL__   1
+
 // comment below to disable bicarb multi level sensor for time based chamber F fill
 #define CONDUCTIVE_LEVEL_SENSOR_ENABLED  1
 
 //Uncomment below to enable d30 heater alarm(as all units are not equipped with d30 temp sensor)
 //#define ENABLE_ALARM_3
 
-//Define to enable the DD too-many-bad-message-CRCs alarm.
-//#define __BAD_MSG_CRC_ALARM_ENABLED__    1
+//Comment below to disable the DD too-many-bad-message-CRCs alarm.
+#define __BAD_MSG_CRC_ALARM_ENABLED__    1
 
-//Uncomment below to enable the conductivity sensor alarms
-//#define ENABLE_ALARM_4
+//Comment below to disable the conductivity sensor alarms
+#define ENABLE_ALARM_4
 
 
     #include <stdio.h>