From c5a8755cc0d62d3ab20d1352bbcdf73d976d39a3 Mon Sep 17 00:00:00 2001
From: Scott Lahteine <sourcetree@thinkyhead.com>
Date: Mon, 11 Apr 2016 18:48:27 -0700
Subject: [PATCH] Fix a messed up ELAPSED instance

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

diff --git a/Marlin/temperature.cpp b/Marlin/temperature.cpp
index c99eea355b4..0975e4fafbf 100644
--- a/Marlin/temperature.cpp
+++ b/Marlin/temperature.cpp
@@ -696,7 +696,7 @@ void manage_heater() {
   } // Extruders Loop
 
   #if HAS_AUTO_FAN
-    if (ELAPSED(ms > next_auto_fan_check_ms)) { // only need to check fan state very infrequently
+    if (ELAPSED(ms, next_auto_fan_check_ms)) { // only need to check fan state very infrequently
       checkExtruderAutoFans();
       next_auto_fan_check_ms = ms + 2500UL;
     }