Index: firmware/App/Modes/Prime.c
===================================================================
diff -u -r27a68f930508638f2eb6265ebb381c8918cbc37b -r56a29edb597683fdf83c87ae46af3d2dcdf0e834
--- firmware/App/Modes/Prime.c	(.../Prime.c)	(revision 27a68f930508638f2eb6265ebb381c8918cbc37b)
+++ firmware/App/Modes/Prime.c	(.../Prime.c)	(revision 56a29edb597683fdf83c87ae46af3d2dcdf0e834)
@@ -36,7 +36,7 @@
 
 // ********** private definitions **********
 
-#define MAX_PRIME_TIME                                      ( 10 * SEC_PER_MIN )                               ///< Maximum prime time (in seconds).
+#define MAX_PRIME_TIME                                      ( 15 * SEC_PER_MIN )                               ///< Maximum prime time (in seconds).
 #define PRIME_DATA_PUB_INTERVAL                             ( MS_PER_SECOND / TASK_GENERAL_INTERVAL )          ///< Interval (ms/task time) at which the prime data is published on the CAN bus.
 
 #define BLOOD_PUMP_FAST_FLOW_RATE_PURGE_AIR_ML_MIN          150                                                ///< Blood pump fast flow rate to fill fluid.