Index: firmware/App/Modes/ModeStandby.c
===================================================================
diff -u -r54d18d86b3947c977163f87fc9f07e6799b1f2c9 -r16d2368daeb22257227f1dda1f5c6b3d801eb672
--- firmware/App/Modes/ModeStandby.c	(.../ModeStandby.c)	(revision 54d18d86b3947c977163f87fc9f07e6799b1f2c9)
+++ firmware/App/Modes/ModeStandby.c	(.../ModeStandby.c)	(revision 16d2368daeb22257227f1dda1f5c6b3d801eb672)
@@ -422,6 +422,7 @@
  * The requestWaterSample function handles an HD request to sample water.
  * @details Inputs: standbyState
  * @details Outputs: pendingSampleWaterRequest
+ * @param sampleWaterCmd the sample water command that has been received
  * @return TRUE if request accepted, FALSE if not.
  *************************************************************************/
 void waterSampleCommandHandler( SAMPLE_WATER_CMD_T sampleWaterCmd )
@@ -589,9 +590,11 @@
  * The startDGHeatDisinfect function starts heat disinfect mode.
  * @details Inputs: standbyState
  * @details Outputs: none
+ * @param isPassive boolean flag to indicate whether this is passive cool heat
+ * or active cool heat disinfect
  * @return: TRUE if the switch was successful
  *************************************************************************/
-BOOL startDGHeatDisinfect( void )
+BOOL startDGHeatDisinfect( BOOL isPassive )
 {
     BOOL status = FALSE;
 
@@ -605,7 +608,7 @@
 
         getNVRecord2Driver( GET_USAGE_RECORD, (U08*)&usageInfo, sizeof( DG_USAGE_INFO_RECORD_T ), 0, ALARM_ID_NO_ALARM );
 
-        cmdResponse.commandID  = DG_CMD_START_HEAT_DISINFECT;
+        cmdResponse.commandID  = ( FALSE == isPassive ? DG_CMD_START_HEAT_DISINFECT_ACTIVE_COOL : DG_CMD_START_HEAT_DISINFECT_PASSIVE_COOL );
         cmdResponse.rejected   = FALSE;
         cmdResponse.rejectCode = DG_CMD_REQUEST_REJECT_REASON_NONE;
 
@@ -666,7 +669,7 @@
 
         getNVRecord2Driver( GET_USAGE_RECORD, (U08*)&usageInfo, sizeof( DG_USAGE_INFO_RECORD_T ), 0, ALARM_ID_NO_ALARM );
 
-        cmdResponse.commandID  = DG_CMD_START_HEAT_DISINFECT;
+        cmdResponse.commandID  = DG_CMD_START_ACTIVE_COOL;
         cmdResponse.rejected   = FALSE;
         cmdResponse.rejectCode = DG_CMD_REQUEST_REJECT_REASON_NONE;