diff --git a/12_MINI/error-codes.yaml b/12_MINI/error-codes.yaml
index a7eb499..55a543a 100644
--- a/12_MINI/error-codes.yaml
+++ b/12_MINI/error-codes.yaml
@@ -75,6 +75,11 @@ Errors:
   text: "Check the heatbreak thermistor wiring for possible damage."
   id: "HEATBREAK_MAXTEMP_ERR"
   approved: true
+- code: "12213"
+  title: "MCU MAXTEMP ERROR"
+  text: "MCU in %s is overheated."
+  id: "MCU_MAXTEMP_ERR"
+  approved: false
   # XX250-XX257 reserved
 - code: "12301"
   title: "HOMING ERROR Z"
diff --git a/13_MK4/error-codes.yaml b/13_MK4/error-codes.yaml
index 4dbbfbb..1042ada 100644
--- a/13_MK4/error-codes.yaml
+++ b/13_MK4/error-codes.yaml
@@ -98,6 +98,12 @@ Errors:
   id: "HEATBREAK_MAXTEMP_ERR"
   approved: true
 
+- code: "13213"
+  title: "MCU MAXTEMP ERROR"
+  text: "MCU in %s is overheated."
+  id: "MCU_MAXTEMP_ERR"
+  approved: false
+
 # XX250-XX257 reserved  
 
 # ELECTRICAL     xx3xx  
diff --git a/16_iX/error-codes.yaml b/16_iX/error-codes.yaml
index 56b6fff..28efde6 100644
--- a/16_iX/error-codes.yaml
+++ b/16_iX/error-codes.yaml
@@ -81,6 +81,11 @@ Errors:
   text: "Check the heatbreak thermistor wiring for possible damage."
   id: "HEATBREAK_MAXTEMP_ERR"
   approved: true
+- code: "16213"
+  title: "MCU MAXTEMP ERROR"
+  text: "MCU in %s is overheated."
+  id: "MCU_MAXTEMP_ERR"
+  approved: false
 - code: "16250"
   title: "MODULAR BED ERROR"
   text: "Heatbed tile no. %d:\nDamaged tile or wiring.\nFollow online guide to diagnose."
diff --git a/17_XL/error-codes.yaml b/17_XL/error-codes.yaml
index 0333f02..b511fd9 100644
--- a/17_XL/error-codes.yaml
+++ b/17_XL/error-codes.yaml
@@ -94,6 +94,11 @@ Errors:
   text: "Check the heatbreak thermistor wiring for possible damage."
   id: "HEATBREAK_MAXTEMP_ERR"
   approved: true
+- code: "17213"
+  title: "MCU MAXTEMP ERROR"
+  text: "MCU in %s is overheated."
+  id: "MCU_MAXTEMP_ERR"
+  approved: false
 - code: "17250"
   title: "MODULAR BED ERROR"
   text: "Heatbed tile no. %d:\nDamaged tile or wiring.\nFollow online guide to diagnose."