Index: firmware/App/Controllers/Pressures.c
===================================================================
diff -u -rb2279059f1aa781e973ff6487a33c85615cedb4d -re6453f6070bec116e1f1e3a553eb2c6a7aac1f9d
--- firmware/App/Controllers/Pressures.c	(.../Pressures.c)	(revision b2279059f1aa781e973ff6487a33c85615cedb4d)
+++ firmware/App/Controllers/Pressures.c	(.../Pressures.c)	(revision e6453f6070bec116e1f1e3a553eb2c6a7aac1f9d)
@@ -556,11 +556,11 @@
 static void monitorPressureSensors( void )
 {
     PRESSURE_SENSORS_T sensorId;
-    PRESSURE_SENSORS_T alarmID;
-    F32 pressureReading       = 0.0F;
-    BOOL isBaroOutOfRange     = FALSE;
-    BOOL isPressureOutOfRange = FALSE;
-    F32 alarmPressure         = 0.0F;
+    PRESSURE_SENSORS_T sensorInAlarm = PRESSURE_SENSOR_RO_PUMP_INLET;
+    F32 pressureReading              = 0.0F;
+    BOOL isBaroOutOfRange            = FALSE;
+    BOOL isPressureOutOfRange        = FALSE;
+    F32 alarmPressure                = 0.0F;
 
     for ( sensorId = PRESSURE_SENSOR_RO_PUMP_INLET; sensorId < NUM_OF_PRESSURE_SENSORS; sensorId++ )
     {
@@ -579,7 +579,7 @@
                 if ( ( pressureReading < MIN_VALID_PRESSURE_RANGE_PSIA ) || ( pressureReading > MAX_VALID_PRESSURE_RANGE_PSIA ) )
                 {
                     isPressureOutOfRange = TRUE;
-                    alarmID              = sensorId;
+                    sensorInAlarm        = sensorId;
                     alarmPressure        = pressureReading;
                 }
                 break;
@@ -603,7 +603,7 @@
     }
 
     // Once the sensors were all checked to be out of range, check the persistent alarm
-    checkPersistentAlarm( ALARM_ID_DG_PRESSURE_OUT_OF_RANGE, isPressureOutOfRange, alarmID, alarmPressure );
+    checkPersistentAlarm( ALARM_ID_DG_PRESSURE_OUT_OF_RANGE, isPressureOutOfRange, sensorInAlarm, alarmPressure );
 }