diff --git a/Marlin/Configuration.h b/Marlin/Configuration.h
index 683157c..b8a5d1d 100644
--- a/Marlin/Configuration.h
+++ b/Marlin/Configuration.h
@@ -380,9 +380,9 @@
   // If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
 
   // i3 Mega
-  #define  DEFAULT_Kp 17.5
-  #define  DEFAULT_Ki 1.06
-  #define  DEFAULT_Kd 72.39
+  #define  DEFAULT_Kp 15.73
+  #define  DEFAULT_Ki 0.90
+  #define  DEFAULT_Kd 68.93
 
   // Ultimaker
   //#define  DEFAULT_Kp 22.2
diff --git a/Marlin/Configuration_adv.h b/Marlin/Configuration_adv.h
index 05c8b89..9eb5384 100644
--- a/Marlin/Configuration_adv.h
+++ b/Marlin/Configuration_adv.h
@@ -76,7 +76,7 @@
  */
 #if ENABLED(THERMAL_PROTECTION_HOTENDS)
   #define THERMAL_PROTECTION_PERIOD 60        // Seconds
-  #define THERMAL_PROTECTION_HYSTERESIS 8     // Degrees Celsius
+  #define THERMAL_PROTECTION_HYSTERESIS 20     // Degrees Celsius
 
   /**
    * Whenever an M104, M109, or M303 increases the target temperature, the
@@ -90,8 +90,8 @@
    * and/or decrease WATCH_TEMP_INCREASE. WATCH_TEMP_INCREASE should not be set
    * below 2.
    */
-  #define WATCH_TEMP_PERIOD 20                // Seconds
-  #define WATCH_TEMP_INCREASE 2               // Degrees Celsius
+  #define WATCH_TEMP_PERIOD 35                // Seconds
+  #define WATCH_TEMP_INCREASE 5               // Degrees Celsius
 #endif
 
 /**
@@ -99,7 +99,7 @@
  */
 #if ENABLED(THERMAL_PROTECTION_BED)
   #define THERMAL_PROTECTION_BED_PERIOD 20    // Seconds
-  #define THERMAL_PROTECTION_BED_HYSTERESIS 2 // Degrees Celsius
+  #define THERMAL_PROTECTION_BED_HYSTERESIS 5 // Degrees Celsius
 
   /**
    * As described above, except for the bed (M140/M190/M303).