Index: firmware/App/Controllers/Voltages.c
===================================================================
diff -u -r3a35ddc9052d17a66407058dc2e74d75920f43f4 -rf11ec493e1187526f6c2cdfb16452cc4f7492537
--- firmware/App/Controllers/Voltages.c	(.../Voltages.c)	(revision 3a35ddc9052d17a66407058dc2e74d75920f43f4)
+++ firmware/App/Controllers/Voltages.c	(.../Voltages.c)	(revision f11ec493e1187526f6c2cdfb16452cc4f7492537)
@@ -36,7 +36,7 @@
 
 #define VOLTAGES_DATA_PUB_INTERVAL          ( MS_PER_SECOND / TASK_GENERAL_INTERVAL )       ///< Interval (ms/task time) at which the voltages data is published on the CAN bus.
 #define VOLTAGES_ALARM_PERSISTENCE_MS       ( 1 * MS_PER_SECOND )                           ///< Alarm persistence period for voltage monitor alarms in milliseconds.
-#define POWER_LOSS_VOLTAGE_PERSISTENCE_MS   150                                             ///< Power supply voltage out of range persistence in milliseconds.
+#define POWER_LOSS_VOLTAGE_PERSISTENCE_MS   500                                             ///< Power supply voltage out of range persistence in milliseconds.
 #define DATA_PUBLISH_COUNTER_START_COUNT    14                                              ///< Data publish counter start count.
 
 /// Defined states for the voltage monitor state machine.
@@ -259,7 +259,7 @@
 
             // Just to make sure we are not clearing the AC power lost in treatment alarm until DG powers up and not in
             // POST mode, to avoid HD sending commands when DG is not yet ready.
-            if ( ( DG_MODE_INIT != getDGOpMode() && TRUE == isDGCommunicating() ) )
+            if ( DG_MODE_INIT != getDGOpMode() )
             {
                 clearAlarmCondition( ALARM_ID_HD_AC_POWER_LOST_IN_TREATMENT );
             }