From b5471aef94ac07c9e3d42c555c4c3b439af3cf96 Mon Sep 17 00:00:00 2001
From: MichaelDvP <github@mdvp.de>
Date: Wed, 26 Mar 2025 17:03:51 +0100
Subject: [PATCH] fix typo in `set_wwswitchtime`, fixes #2490

---
 src/devices/thermostat.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/devices/thermostat.cpp b/src/devices/thermostat.cpp
index 7e29724a4..52f07bd20 100644
--- a/src/devices/thermostat.cpp
+++ b/src/devices/thermostat.cpp
@@ -3619,7 +3619,7 @@ bool Thermostat::set_wwCircSwitchTime(const char * value, const int8_t id) {
 // sets a single switchtime in the thermostat circulation program for RC35
 bool Thermostat::set_wwSwitchTime(const char * value, const int8_t id) {
     auto dhw = dhw_circuit(id2dhw(id));
-    if (dhw != nullptr) {
+    if (dhw == nullptr) {
         return false;
     }
     char out[sizeof(dhw->wwSwitchTime_)] = {'\0'};