From 37c121e8de5cf647af1fddf0b7c127c3f0693a55 Mon Sep 17 00:00:00 2001
From: MichaelDvP <github@mdvp.de>
Date: Sun, 13 Nov 2022 18:43:24 +0100
Subject: [PATCH] check selflowtemp change before write

---
 src/devices/boiler.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/devices/boiler.cpp b/src/devices/boiler.cpp
index f45bf8605..c972eeaa9 100644
--- a/src/devices/boiler.cpp
+++ b/src/devices/boiler.cpp
@@ -1772,6 +1772,11 @@ bool Boiler::set_flow_temp(const char * value, const int8_t id) {
         return false;
     }
 
+    //  no write/verify if there is no change, see https://github.com/emsesp/EMS-ESP32/issues/654
+    if (v == selFlowTemp_) {
+        return true;
+    }
+
     if (has_telegram_id(0xE4)) {
         write_command(EMS_TYPE_UBASetPoints, 0, v, 0xE4);
     } else {