diff --git a/config/examples/Cartesio/Configuration.h b/config/examples/Cartesio/Configuration.h
index dd53ec7d78..5c1f1f80dc 100644
--- a/config/examples/Cartesio/Configuration.h
+++ b/config/examples/Cartesio/Configuration.h
@@ -635,14 +635,14 @@
 // Above this temperature the heater will be switched off.
 // This can protect components from overheating, but NOT from shorts and failures.
 // (Use MINTEMP for thermistor short/failure protection.)
-#define HEATER_0_MAXTEMP 415
-#define HEATER_1_MAXTEMP 415
-#define HEATER_2_MAXTEMP 415
-#define HEATER_3_MAXTEMP 415
-#define HEATER_4_MAXTEMP 415
-#define HEATER_5_MAXTEMP 415
-#define HEATER_6_MAXTEMP 415
-#define HEATER_7_MAXTEMP 415
+#define HEATER_0_MAXTEMP 305
+#define HEATER_1_MAXTEMP 305
+#define HEATER_2_MAXTEMP 305
+#define HEATER_3_MAXTEMP 305
+#define HEATER_4_MAXTEMP 305
+#define HEATER_5_MAXTEMP 305
+#define HEATER_6_MAXTEMP 305
+#define HEATER_7_MAXTEMP 305
 #define BED_MAXTEMP      165
 #define CHAMBER_MAXTEMP  60