diff --git a/Firmware/Marlin_main.cpp b/Firmware/Marlin_main.cpp
index 89e77153f..68fc9aa92 100644
--- a/Firmware/Marlin_main.cpp
+++ b/Firmware/Marlin_main.cpp
@@ -1255,9 +1255,6 @@ void setup()
     temp_mgr_init();
 
 #ifdef EXTRUDER_ALTFAN_DETECT
-    if (eeprom_read_byte((uint8_t*)EEPROM_ALTFAN_OVERRIDE) == EEPROM_EMPTY_VALUE) {
-        eeprom_update_byte((uint8_t*)EEPROM_ALTFAN_OVERRIDE, 0);
-    }
     SERIAL_ECHORPGM(_n("Hotend fan type: "));
     if (extruder_altfan_detect())
         SERIAL_ECHOLNRPGM(PSTR("ALTFAN"));
diff --git a/Firmware/fancheck.cpp b/Firmware/fancheck.cpp
index af326b748..70ed9e468 100755
--- a/Firmware/fancheck.cpp
+++ b/Firmware/fancheck.cpp
@@ -166,7 +166,7 @@ bool extruder_altfan_detect()
     altfanStatus.isAltfan = 0;
 
     // During initialisation, use the EEPROM value
-    altfanStatus.altfanOverride = eeprom_read_byte((uint8_t *)EEPROM_ALTFAN_OVERRIDE);
+    altfanStatus.altfanOverride = eeprom_init_default_byte((uint8_t*)EEPROM_ALTFAN_OVERRIDE, 0);
     setExtruderAutoFanState(3);
 
     SET_INPUT(TACH_0);