[2.0.x] Limit PID autotune target to maxtemp-15 (#12691)

MarlinFirmware · Dec 20, 2018 · 4dad489 · 4dad489
1 parent 8dcc28c
commit 4dad489
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/Marlin/src/module/temperature.cpp b/Marlin/src/module/temperature.cpp
@@ -286,6 +286,11 @@ uint8_t Temperature::soft_pwm_amount[HOTENDS];
       next_auto_fan_check_ms = next_temp_ms + 2500UL;
     #endif
 
+    if (target > GHV(BED_MAXTEMP, maxttemp[heater]) - 15)) {
+      SERIAL_ECHOLNPGM(MSG_PID_TEMP_TOO_HIGH);
+      return;
+    }
+
     SERIAL_ECHOLNPGM(MSG_PID_AUTOTUNE_START);
 
     disable_all_heaters();