Index: firmware/App/Controllers/UVReactors.c
===================================================================
diff -u -ra9315539f527b92523b1598ff91e47db4d71dae2 -rb8b0ec09861caae6dc20db04b58889d55ccbd8cd
--- firmware/App/Controllers/UVReactors.c	(.../UVReactors.c)	(revision a9315539f527b92523b1598ff91e47db4d71dae2)
+++ firmware/App/Controllers/UVReactors.c	(.../UVReactors.c)	(revision b8b0ec09861caae6dc20db04b58889d55ccbd8cd)
@@ -397,11 +397,13 @@
     // Get the health of the reactor (override or non-override) and decide the status
     BOOL isReactorUnhealthy = ( UV_REACTOR_HEALTHY == getUVReactorHealth( reactor ) ? FALSE : TRUE );
 
+#ifndef DISABLE_UV_REACTORS
     // Check if the alarm has been active
     if ( TRUE == checkPersistentAlarm( ALARM_ID_UV_REACTOR_NOT_HEALTHY, isReactorUnhealthy, (U32)reactor, MAX_ALLOWED_UNHEALTHY_REACTOR_PERIOD ) )
     {
         reactorsStatus[ reactor ].switchState = TURN_OFF;
     }
+#endif
 
     // Check if it has been requested to turn off a reactor
     if ( TURN_OFF == reactorsStatus[ reactor ].switchState )
Index: firmware/App/DGCommon.h
===================================================================
diff -u -r54ddf1fe71787557a856e643543ec4072bf7fde7 -rb8b0ec09861caae6dc20db04b58889d55ccbd8cd
--- firmware/App/DGCommon.h	(.../DGCommon.h)	(revision 54ddf1fe71787557a856e643543ec4072bf7fde7)
+++ firmware/App/DGCommon.h	(.../DGCommon.h)	(revision b8b0ec09861caae6dc20db04b58889d55ccbd8cd)
@@ -57,6 +57,7 @@
     #define DISABLE_HEATERS_EFFICIENCY      1
     #define DISABLE_HEAT_DISINFECT_CONDUCTIVITY 1           // Implement
 //    #define DISABLE_CONC_PUMPS             1
+    #define DISABLE_UV_REACTORS              1
 
     // Turn these flags on to disable dialysate mixing
     #define DISABLE_DIALYSATE_CHECK         1  // Disabled for Tom  // Implement