Index: firmware/App/Modes/ModeHeatDisinfect.c
===================================================================
diff -u -r51d67532a86df4c88bebe57d224a9c81c029c08b -r98d81183a0783497cf5717ef34aa5e862136a790
--- firmware/App/Modes/ModeHeatDisinfect.c	(.../ModeHeatDisinfect.c)	(revision 51d67532a86df4c88bebe57d224a9c81c029c08b)
+++ firmware/App/Modes/ModeHeatDisinfect.c	(.../ModeHeatDisinfect.c)	(revision 98d81183a0783497cf5717ef34aa5e862136a790)
@@ -78,7 +78,7 @@
 #define RSRVRS_PARTIAL_FILL_VOL_ML                 500.0F                                                      ///< Reservoirs 1 & 2 partial volume in mL.
 #define RSRVRS_FULL_STABLE_TIME_COUNT              ( ( 4 * MS_PER_SECOND ) / TASK_GENERAL_INTERVAL )           ///< Reservoirs 1 & 2 full stable time in counts.
 #define RSRVRS_FILL_UP_TIMEOUT_MS                  ( 5 * SEC_PER_MIN * MS_PER_SECOND )                         ///< Reservoirs 1 & 2 full fill up timeout in ms.
-#define RSRVRS_500ML_FILL_UP_TIMEOUT_MS            ( 4 * SEC_PER_MIN * MS_PER_SECOND )                         ///< Reservoirs 1 & 2 partial fill up timeout in ms.
+#define RSRVRS_500ML_FILL_UP_TIMEOUT_MS            ( 2 * SEC_PER_MIN * MS_PER_SECOND )                         ///< Reservoirs 1 & 2 partial fill up timeout in ms.
 #define RSRVRS_DRAIN_TIMEOUT_MS                    ( 2 * SEC_PER_MIN * MS_PER_SECOND )                         ///< Reservoirs 1 & 2 drain timeout in ms.
 
 // Target temperature