From 88e4dffe883036b73c224df8aa45d877e65ff93f Mon Sep 17 00:00:00 2001
From: Giuliano Zaro <3684609+GMagician@users.noreply.github.com>
Date: Thu, 18 Jun 2020 23:05:12 +0200
Subject: [PATCH] Fix PID autotune timeout (#18352)

---
 Marlin/src/module/temperature.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Marlin/src/module/temperature.cpp b/Marlin/src/module/temperature.cpp
index 23c3d90a3..16e29f7b3 100644
--- a/Marlin/src/module/temperature.cpp
+++ b/Marlin/src/module/temperature.cpp
@@ -568,7 +568,7 @@ volatile bool Temperature::raw_temps_ready = false;
       #ifndef MAX_CYCLE_TIME_PID_AUTOTUNE
         #define MAX_CYCLE_TIME_PID_AUTOTUNE 20L
       #endif
-      if (((ms - t1) + (ms - t2)) > (MAX_CYCLE_TIME_PID_AUTOTUNE * 60L * 1000L)) {
+      if ((ms - _MIN(t1, t2)) > (MAX_CYCLE_TIME_PID_AUTOTUNE * 60L * 1000L)) {
         TERN_(DWIN_CREALITY_LCD, Popup_Window_Temperature(0));
         TERN_(EXTENSIBLE_UI, ExtUI::onPidTuning(ExtUI::result_t::PID_TUNING_TIMEOUT));
         SERIAL_ECHOLNPGM(STR_PID_TIMEOUT);