Index: firmware/App/Controllers/DialInFlow.c
===================================================================
diff -u -rdb291cc22fd8f10e6e47cad468e14ed5590a94f2 -r706f67e47f41e06b30e95026af2e9854e0e801e2
--- firmware/App/Controllers/DialInFlow.c	(.../DialInFlow.c)	(revision db291cc22fd8f10e6e47cad468e14ed5590a94f2)
+++ firmware/App/Controllers/DialInFlow.c	(.../DialInFlow.c)	(revision 706f67e47f41e06b30e95026af2e9854e0e801e2)
@@ -51,7 +51,7 @@
 
 #define MAX_DIAL_IN_PUMP_PWM_STEP_UP_CHANGE  0.01064F        ///< Max duty cycle change when ramping up.
 #define MAX_DIAL_IN_PUMP_PWM_STEP_DN_CHANGE  0.016F          ///< Max duty cycle change when ramping down.
-#define MAX_DIAL_IN_PUMP_PWM_DUTY_CYCLE      0.90F           ///< Controller will error if PWM duty cycle > 90%, so set max to 90%.
+#define MAX_DIAL_IN_PUMP_PWM_DUTY_CYCLE      0.78F           ///< Max duty cycle is 78% to cap pump speed to 3,400 RPM to prevent rotor speed errors.
 #define MIN_DIAL_IN_PUMP_PWM_DUTY_CYCLE      0.10F           ///< Controller will error if PWM duty cycle < 10%, so set min to 10%.
 #define MIN_DG_DIAL_FLOW_RATE                10.0F           ///< Minimum DG Dialysate Flow Rate (mL/Min)
 
Index: firmware/App/Controllers/DialOutFlow.c
===================================================================
diff -u -rbb2663ead0175c2567bdc4c5ca1ddce851e36b19 -r706f67e47f41e06b30e95026af2e9854e0e801e2
--- firmware/App/Controllers/DialOutFlow.c	(.../DialOutFlow.c)	(revision bb2663ead0175c2567bdc4c5ca1ddce851e36b19)
+++ firmware/App/Controllers/DialOutFlow.c	(.../DialOutFlow.c)	(revision 706f67e47f41e06b30e95026af2e9854e0e801e2)
@@ -57,7 +57,7 @@
 #define MAX_DIAL_OUT_PUMP_PWM_CHANGE            0.05F           ///< Maximum duty cycle change allowed.
 #define MAX_DIAL_OUT_PUMP_PWM_STEP_UP_CHANGE    0.01064F        ///< Maximum duty cycle change when ramping up.
 #define MAX_DIAL_OUT_PUMP_PWM_STEP_DN_CHANGE    0.016F          ///< Maximum duty cycle change when ramping down.
-#define MAX_DIAL_OUT_PUMP_PWM_DUTY_CYCLE        0.90F           ///< Controller will error if PWM duty cycle > 90%, so set max to 89%.
+#define MAX_DIAL_OUT_PUMP_PWM_DUTY_CYCLE        0.78F           ///< Max duty cycle is 78% to cap pump speed to 3,400 RPM to prevent rotor speed errors.
 #define MIN_DIAL_OUT_PUMP_PWM_DUTY_CYCLE        0.10F           ///< Controller will error if PWM duty cycle < 10%, so set min to 10%.
 #define MIN_DIAL_OUT_CL_PWM_DUTY_CYCLE          0.11F           ///< Dial outlet pump Closed Loop minimum PWM duty cycle.
 #define MAX_DIAL_OUT_PUMP_PWM_OFFSET_CONTROL    0.4F            ///< Maximum PWM offset (added to DPi PWM duty cycle).