From be703522036250c4753d5ae1100c78bf01e8a124 Mon Sep 17 00:00:00 2001
From: Keith Bennett <13375512+thisiskeithb@users.noreply.github.com>
Date: Mon, 21 Feb 2022 18:47:53 -0800
Subject: [PATCH] =?UTF-8?q?=F0=9F=94=A7=20Warning=20for=20MK3=5FFAN=5FPINS?=
 =?UTF-8?q?=20(#23727)?=
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---
 Marlin/src/inc/Warnings.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Marlin/src/inc/Warnings.cpp b/Marlin/src/inc/Warnings.cpp
index dcdc12f45e..c4716cd376 100644
--- a/Marlin/src/inc/Warnings.cpp
+++ b/Marlin/src/inc/Warnings.cpp
@@ -597,3 +597,10 @@
 #ifdef __STM32F1__
   #warning "Maple build environments are deprecated. Please use a non-Maple build environment. Report issues to the Marlin Firmware project."
 #endif
+
+/**
+ * Průša MK3/S/+ fan pin reassignment
+ */
+#if MB(BTT_BTT002_V1_0, EINSY_RAMBO) && DISABLED(NO_MK3_FAN_PINS_WARNING)
+  #warning "Define MK3_FAN_PINS to swap hotend and part cooling fan pins. (Define NO_MK3_FAN_PINS_WARNING to suppress this warning.)"
+#endif