Index: firmware/App/Controllers/DialInFlow.c
===================================================================
diff -u -re5c6383e93940c2722d3bf73beb1d13a6d3eae6e -r0afd6b2cf9e986d314f37fb9bf34ca4fba077266
--- firmware/App/Controllers/DialInFlow.c	(.../DialInFlow.c)	(revision e5c6383e93940c2722d3bf73beb1d13a6d3eae6e)
+++ firmware/App/Controllers/DialInFlow.c	(.../DialInFlow.c)	(revision 0afd6b2cf9e986d314f37fb9bf34ca4fba077266)
@@ -8,7 +8,7 @@
 * @file    DialInFlow.c
 *
 * @author  (last)      Dara Navaei
-* @date    (last)      08-May-2023
+* @date    (last)      21-May-2023
 *
 * @author  (original)  Sean
 * @date    (original)  16-Dec-2019
@@ -79,8 +79,9 @@
 static const U32 DIP_OFF_ERROR_PERSIST         = ((5 * MS_PER_SECOND) / TASK_PRIORITY_INTERVAL);
 /// Persist time (task intervals) motor speed error condition.
 static const U32 DIP_MOTOR_SPEED_ERROR_PERSIST = ((5 * MS_PER_SECOND) / TASK_PRIORITY_INTERVAL);
-/// Rotor speed persist time test needs a minimum number of rotations.
-static const U32 DIP_ROTOR_ERROR_PERSIST_ROTATION_MIN = 3;
+/// Rotor speed persist time test needs a minimum number of rotations or time.
+static const U32 DIP_ROTOR_ERROR_PERSIST_ROTATION_MIN = 10;
+static const U32 DIP_ROTOR_ERROR_PERSIST_TIME_MIN = (10 * MS_PER_SECOND);
 /// Persist time (task intervals) pump direction error condition.
 static const U32 DIP_DIRECTION_ERROR_PERSIST   = (250 / TASK_PRIORITY_INTERVAL);
 /// Time threshold to trigger an alarm if Dialysate flow data has not arrived within 3 seconds
@@ -1063,17 +1064,20 @@
  * @details Inputs: none
  * @details Outputs: none
  * @param mtr_rpm, RPM of the motor.
- *        gear_ratio, Gear ratio of motor vs motor
+ * @param gear_ratio, Gear ratio of motor vs motor
  * @return Persistent error test time in (ms)
  *************************************************************************/
 U32 getPumpRotorErrorPersistTime( F32 mtr_rpm, F32 gear_ratio )
 {
     U32 err_persist_time = HEX_32_BIT_FULL_SCALE;  // 49 days
+    F32 absMotRPM = fabs( mtr_rpm );
 
-    if ( mtr_rpm > 0 )
+    if ( absMotRPM > NEARLY_ZERO )
     {
         /// Calculate persist time for rotor speed error condition.
-        err_persist_time = ( ( DIP_ROTOR_ERROR_PERSIST_ROTATION_MIN / ( mtr_rpm / gear_ratio / SEC_PER_MIN ) ) * MS_PER_SECOND );
+        err_persist_time = ( ( (F32)DIP_ROTOR_ERROR_PERSIST_ROTATION_MIN / ( absMotRPM / gear_ratio / (F32)SEC_PER_MIN ) ) * (F32)MS_PER_SECOND );
+        // Choose bigger value of MinTime or calculated persist time
+        err_persist_time = MAX(DIP_ROTOR_ERROR_PERSIST_TIME_MIN, err_persist_time);
     }
 
    return err_persist_time;