diff --git a/src/devices/thermostat.cpp b/src/devices/thermostat.cpp
index 35a6fc992..899afc518 100644
--- a/src/devices/thermostat.cpp
+++ b/src/devices/thermostat.cpp
@@ -1059,12 +1059,8 @@ void Thermostat::process_JunkersMonitor(std::shared_ptr<const Telegram> telegram
 void Thermostat::process_RC300Monitor(std::shared_ptr<const Telegram> telegram) {
     std::shared_ptr<Thermostat::HeatingCircuit> hc = heating_circuit(telegram);
 
-    // if current room temp starts with 0x90 it's usually trouble
-    // room temperatur is valid if bit 5 in data[2] is set
-    if (telegram->message_data[2] & 0x40) {
-        telegram->read_value(hc->curr_roomTemp, 0); // is * 10
-    }
-
+    telegram->read_value(hc->curr_roomTemp, 0); // is * 10
+    
     telegram->read_bitvalue(hc->mode_type, 10, 1);
     telegram->read_bitvalue(hc->mode, 10, 0); // bit 1, mode (auto=1 or manual=0)