Index: firmware/App/Monitors/Temperature.c
===================================================================
diff -u -rd748813399d38ef5b71d760e327e368cc82d7a38 -r5d60262836ddc8f80ac98f07f2cfd6707a5b7b79
--- firmware/App/Monitors/Temperature.c	(.../Temperature.c)	(revision d748813399d38ef5b71d760e327e368cc82d7a38)
+++ firmware/App/Monitors/Temperature.c	(.../Temperature.c)	(revision 5d60262836ddc8f80ac98f07f2cfd6707a5b7b79)
@@ -7,8 +7,8 @@
 *
 * @file    Temperature.c
 *
-* @author  (last)      Vinayakam Mani
-* @date    (last)      11-Feb-2026
+* @author  (last)      Raghu Kallala
+* @date    (last)      10-Feb-2026
 *
 * @author  (original)  Vinayakam Mani
 * @date    (original)  25-Sep-2024
@@ -46,7 +46,7 @@
 #define TEMP_SENSORS_DATA_PUBLISH_INTERVAL                      ( MS_PER_SECOND / TASK_PRIORITY_INTERVAL )      ///< Temperature sensors publish data time interval.
 #define TEMP_SENSORS_FPGA_ERROR_TIMEOUT_MS                      ( 2 * MS_PER_SECOND )                           ///< Temperature sensors FPGA error timeout in milliseconds.
 #define D4_TEMP_MOVING_AVG_NUM_OF_SAMPLES                       50                                              ///< D4 temperature sensor moving average number of samples.
-#define D50_TEMP_MOVING_AVG_NUM_OF_SAMPLES                      50                                              ///< D50 temperature sensor moving average number of samples.
+#define D50_TEMP_MOVING_AVG_NUM_OF_SAMPLES                      25                                              ///< D50 temperature sensor moving average number of samples ( 250ms filter ).
 #define D99_TEMP_MOVING_AVG_NUM_OF_SAMPLES                      50                                              ///< D99 temperature sensor moving average number of samples
 #define DATA_PUBLISH_COUNTER_START_COUNT                        30                                              ///< Data publish counter start count.
 #define DIAL_TEMP_MOVING_AVG_NUM_OF_SAMPLES                     30                                              ///< Dialysate temperature sensors moving average number of samples.
@@ -95,9 +95,8 @@
 static F32 d4TempSamplesC[ D4_TEMP_MOVING_AVG_NUM_OF_SAMPLES ];                                                 ///< D4 temperature samples array in C.
 static U32 d4TempSamplesNextIndex;                                                                              ///< D4 temperature sample next index number.
 static U32 d4TempCount;                                                                                         ///< D4 Number of samples in average buffer.
-static U32 tempDataCollectionTimeInterval;                                                                      ///< Temperature data collection time interval in milliseconds.
+static U32 tempDataColTimeInterval;                                                                             ///< Temperature data collection time interval in milliseconds.
 static U32 d4TempSampleIntervalCounter;                                                                         ///< D4 temperature sensor sample collection timer counter.
-static U32 d50TempSampleIntervalCounter;                                                                        ///< D50 temperature sensor sample collection timer counter.
 
 static F32 d50TempAvgC;                                                                                         ///< D50 temperature average in C.
 static F32 d50TempRunningSumC;                                                                                  ///< D50 temperature running sum in C.
@@ -152,9 +151,8 @@
     d99TempSamplesNextIndex                 = 0;
     d99TempCount                            = 0;
     d4TempSampleIntervalCounter             = 0;
-    d50TempSampleIntervalCounter            = 0;
     d99TempSampleIntervalCounter            = 0;
-    tempDataCollectionTimeInterval          = 0;
+    tempDataColTimeInterval                 = 0;
     tempDriftEventCheck                     = FALSE;
 
     dialTempMovingAvgData[ DIAL_TEMP_D28 ].dialTempColHasTimerBeenSet = FALSE;
@@ -311,7 +309,7 @@
 static void filterTemperatureReadings( void )
 {
     // Moving average sample collection interval varies based on the dialysate flow rate
-    if ( ++d4TempSampleIntervalCounter >= tempDataCollectionTimeInterval )
+    if ( ++d4TempSampleIntervalCounter >= tempDataColTimeInterval )
     {
         // Filter D4 Temperature for AC heater
         if ( d4TempCount >= D4_TEMP_MOVING_AVG_NUM_OF_SAMPLES )
@@ -328,26 +326,22 @@
         d4TempSampleIntervalCounter                 = 0;
     }
 
-    // Moving average sample collection interval varies based on the dialysate flow rate
-    if ( ++d50TempSampleIntervalCounter >= tempDataCollectionTimeInterval )
+    // Filter D50 Temperature ( 250 ms filter ) for trimmer heater
+    if ( d50TempCount >= D50_TEMP_MOVING_AVG_NUM_OF_SAMPLES )
     {
-        if ( d50TempCount >= D50_TEMP_MOVING_AVG_NUM_OF_SAMPLES )
-        {
-            d50TempRunningSumC -= d50TempSamplesC[ d50TempSamplesNextIndex ];
-        }
-
-        F32 d50Temp                                  = getTemperatureValue( D50_TEMP );
-        d50TempSamplesC[ d50TempSamplesNextIndex ]   = d50Temp;
-        d50TempRunningSumC                           += d50Temp;
-        d50TempSamplesNextIndex                      = INC_WRAP( d50TempSamplesNextIndex, 0, D50_TEMP_MOVING_AVG_NUM_OF_SAMPLES - 1 );
-        d50TempCount                                 = INC_CAP( d50TempCount, D50_TEMP_MOVING_AVG_NUM_OF_SAMPLES );
-        d50TempAvgC                                  = d50TempRunningSumC / (F32)d50TempCount;
-        d50TempSampleIntervalCounter                 = 0;
+        d50TempRunningSumC -= d50TempSamplesC[ d50TempSamplesNextIndex ];
     }
 
+    F32 d50Temp                                  = getTemperatureValue( D50_TEMP );
+    d50TempSamplesC[ d50TempSamplesNextIndex ]   = d50Temp;
+    d50TempRunningSumC                           += d50Temp;
+    d50TempSamplesNextIndex                      = INC_WRAP( d50TempSamplesNextIndex, 0, D50_TEMP_MOVING_AVG_NUM_OF_SAMPLES - 1 );
+    d50TempCount                                 = INC_CAP( d50TempCount, D50_TEMP_MOVING_AVG_NUM_OF_SAMPLES );
+    d50TempAvgC                                  = d50TempRunningSumC / (F32)d50TempCount;
 
+
     // Moving average sample collection interval varies based on the dialysate flow rate
-    if ( ++d99TempSampleIntervalCounter >= tempDataCollectionTimeInterval )
+    if ( ++d99TempSampleIntervalCounter >= tempDataColTimeInterval )
     {
 
         // Filter D99 Temperature for fresh dialysate temperature
@@ -498,7 +492,7 @@
 
     U32 sampleInterval = (U32)( ( period / (F32)D4_TEMP_MOVING_AVG_NUM_OF_SAMPLES ) * MS_PER_SECOND );
 
-    tempDataCollectionTimeInterval = (U32) ( sampleInterval / TASK_PRIORITY_INTERVAL );
+    tempDataColTimeInterval = (U32) ( sampleInterval / TASK_PRIORITY_INTERVAL );
 }
 
 /*********************************************************************//**