Index: firmware/App/Controllers/Heaters.c
===================================================================
diff -u -r1440a4a2be8d12edebd405a20807882e5d32d619 -re608f0a2bda2ad8df59a604a511cbd2a1c323dc3
--- firmware/App/Controllers/Heaters.c	(.../Heaters.c)	(revision 1440a4a2be8d12edebd405a20807882e5d32d619)
+++ firmware/App/Controllers/Heaters.c	(.../Heaters.c)	(revision e608f0a2bda2ad8df59a604a511cbd2a1c323dc3)
@@ -217,6 +217,18 @@
 
 /*********************************************************************//**
  * @brief
+ * The isHeaterOn function returns the heater status whether it is on or off
+ * @details Inputs: none
+ * @details Outputs: heaterStatus
+ * @return heater on/off status
+ *************************************************************************/
+BOOL isHeaterOn( DG_HEATERS_T heater )
+{
+    return heatersStatus[ heater ].isHeaterOn;
+}
+
+/*********************************************************************//**
+ * @brief
  * The startPrimaryHeater function starts the primary heaters. It resets
  * the primary heaters state and sets the main primary heater duty cycle.
  * @details Inputs: primaryHeaterTargetTemperature
@@ -588,7 +600,7 @@
 {
     HEATERS_STATE_T state  = HEATER_EXEC_STATE_CONTROL_TO_DISINFECT_TARGET;
     F32 currentTemperature = getTemperatureValue( TEMPSENSORS_OUTLET_PRIMARY_HEATER );
-    F32 targetTemperature  = heatersStatus[ DG_PRIMARY_HEATER ].targetTemp;
+    F32 targetTemperature  = heatersStatus[ heater ].targetTemp;
 
     if ( currentTemperature < targetTemperature )
     {