From 5c010a3aaa393320e75382e15f2692275d21ea1e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Gu=C3=B0ni=20M=C3=A1r=20Gilbert?= <gudni.m.g@gmail.com>
Date: Sat, 18 Mar 2023 10:43:23 +0000
Subject: [PATCH] PFW-1509 Fix an issue with unload when nozzle is cold

Change in memory:
Flash: -2 bytes
SRAM: 0 bytes
---
 Firmware/ultralcd.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Firmware/ultralcd.cpp b/Firmware/ultralcd.cpp
index f327fbdc1..b7b5fe6b9 100644
--- a/Firmware/ultralcd.cpp
+++ b/Firmware/ultralcd.cpp
@@ -1893,7 +1893,9 @@ void mFilamentItem(uint16_t nTemp, uint16_t nTempBed)
 
     lcd_timeoutToStatus.stop();
 
-    if (abs((int)current_temperature[0] - nTemp) > TEMP_HYSTERESIS)
+    // the current temperature is within +-TEMP_HYSTERESIS of the target
+    // then continue with the filament action if any is set
+    if (abs((int)current_temperature[0] - nTemp) < TEMP_HYSTERESIS)
     {
         switch (eFilamentAction)
         {
@@ -1956,7 +1958,7 @@ void mFilamentItem(uint16_t nTemp, uint16_t nTempBed)
         if (bFilamentWaitingFlag) Sound_MakeSound(e_SOUND_TYPE_StandardPrompt);
         bFilamentWaitingFlag = false;
     }
-    else
+    else // still preheating, continue updating LCD UI
     {
         if (!bFilamentWaitingFlag || lcd_draw_update)
         {