Index: firmware/App/Controllers/Heaters.c
===================================================================
diff -u -re66245baae86e539e8470aa9739a99a2146d5f17 -r0953a2a6940f9f096fa98cc1e8a5578deab4d8ef
--- firmware/App/Controllers/Heaters.c	(.../Heaters.c)	(revision e66245baae86e539e8470aa9739a99a2146d5f17)
+++ firmware/App/Controllers/Heaters.c	(.../Heaters.c)	(revision 0953a2a6940f9f096fa98cc1e8a5578deab4d8ef)
@@ -546,6 +546,7 @@
     // TODO for testing only. remove
 #ifdef DEBUG_ENABLED
 #ifdef ENABLE_DIP_SWITCHES
+#ifndef EMC_TEST_BUILD
     if ( TOGGLEPRIMAYHEATER() )
     {
         setPrimaryHeaterTargetTemperature ( 37 );
@@ -558,6 +559,7 @@
     }
 #endif
 #endif
+#endif
     // TODO remove this code for testing
 
     if ( hasStartPrimaryHeaterRequested )