diff --git a/src/devices/thermostat.cpp b/src/devices/thermostat.cpp
index 4229b6c59..9573c7bc7 100644
--- a/src/devices/thermostat.cpp
+++ b/src/devices/thermostat.cpp
@@ -976,7 +976,8 @@ void Thermostat::process_RC300Monitor(std::shared_ptr<const Telegram> telegram)
 
     has_update(telegram, hc->roomTemp, 0); // is * 10
     has_bitupdate(telegram, hc->modetype, 10, 1);
-    has_bitupdate(telegram, hc->mode, 10, 0); // bit 1, mode (auto=1 or manual=0)
+    // auto status, read mode in settings
+    // has_bitupdate(telegram, hc->mode, 10, 0); // bit 0, mode (auto=1 or manual=0)
 
     // if manual, take the current setpoint temp at pos 6
     // if auto, take the next setpoint temp at pos 7
@@ -990,7 +991,7 @@ void Thermostat::process_RC300Monitor(std::shared_ptr<const Telegram> telegram)
     // summermode is bit 4 for boilers and bit 6 for heatpumps: 0:winter, 1:summer
     telegram->read_value(hc->statusbyte, 2);
     // use summertemp or hpoperatingstate, https://github.com/emsesp/EMS-ESP32/issues/747, #550, #503
-    if ((hc->statusbyte & 1) || !is_fetch(summer2_typeids[hc->hc()])) {
+    if ((hc->statusbyte & 1) || !is_received(summer2_typeids[hc->hc()])) {
         has_update(hc->summermode, hc->statusbyte & 0x50 ? 1 : 0);
         has_update(hc->hpoperatingstate, EMS_VALUE_UINT_NOTSET);
     } else {
@@ -1022,12 +1023,13 @@ void Thermostat::process_RC300Set(std::shared_ptr<const Telegram> telegram) {
     // has_update(telegram, hc->selTemp, 10, 1); // single byte conversion, value is * 2 - manual
 
     telegram->read_value(hc->mode_new, 21); // 0-off, 1-manual, 2-auto
-    if (Helpers::hasValue(hc->mode_new)) {
+    if (hc->mode_new <= 2) {
         has_update(hc->mode, hc->mode_new);
     } else {
-        uint8_t mode = EMS_VALUE_UINT_NOTSET;
-        telegram->read_value(mode, 0);
-        has_update(hc->mode, mode == 0xFF ? 2 : 1);
+        uint8_t mode = hc->mode == 2 ? 0xFF : 0; // auto : manual
+        if (telegram->read_value(mode, 0)) {
+            has_update(hc->mode, mode == 0xFF ? 2 : 1);
+        }
     }
     has_update(telegram, hc->daytemp, 2);   // is * 2
     has_update(telegram, hc->nighttemp, 4); // is * 2
@@ -1063,7 +1065,7 @@ void Thermostat::process_RC300Summer(std::shared_ptr<const Telegram> telegram) {
     has_update(telegram, hc->roominfluence, 0);
     has_update(telegram, hc->roominfl_factor, 1); // is * 10
     has_update(telegram, hc->offsettemp, 2);
-    if (!is_fetch(summer2_typeids[hc->hc()])) {
+    if (!is_received(summer2_typeids[hc->hc()])) {
         has_update(telegram, hc->summertemp, 6);
         has_update(telegram, hc->summersetmode, 7);
     }
@@ -2616,7 +2618,7 @@ bool Thermostat::set_summermode(const char * value, const int8_t id) {
 
     uint8_t set;
 
-    if (is_fetch(summer2_typeids[hc->hc()])) {
+    if (is_received(summer2_typeids[hc->hc()])) {
         if ((hc->statusbyte & 1) && Helpers::value2enum(value, set, FL_(enum_summermode))) {
             write_command(summer2_typeids[hc->hc()], 0, set, summer2_typeids[hc->hc()]);
             return true;
@@ -3169,7 +3171,7 @@ bool Thermostat::set_temperature(const float temperature, const uint8_t mode, co
         validate_typeid = set_typeids[hc->hc()];
         switch (mode) {
         case HeatingCircuit::Mode::SUMMER:
-            if (is_fetch(summer2_typeids[hc->hc()])) {
+            if (is_received(summer2_typeids[hc->hc()])) {
                 offset     = 0x01;
                 set_typeid = summer2_typeids[hc->hc()];
             } else {
@@ -3604,7 +3606,7 @@ void Thermostat::register_device_values() {
                               &wwDisinfectHour_,
                               DeviceValueType::UINT,
                               DeviceValueNumOp::DV_NUMOP_MUL15,
-                              FL_(wwDisinfectHour),
+                              FL_(wwDisinfectTime),
                               DeviceValueUOM::MINUTES,
                               MAKE_CF_CB(set_wwDisinfectHour),
                               0,
diff --git a/src/devices/thermostat.h b/src/devices/thermostat.h
index 4fa450143..3ad8bec68 100644
--- a/src/devices/thermostat.h
+++ b/src/devices/thermostat.h
@@ -41,7 +41,7 @@ class Thermostat : public EMSdevice {
         uint8_t tempautotemp;
         int8_t  remoteseltemp;
         uint8_t mode;
-        uint8_t mode_new;
+        uint8_t mode_new = EMS_VALUE_UINT_NOTSET; // not initialized by register_value
         uint8_t modetype;
         uint8_t summermode;
         uint8_t holidaymode;
diff --git a/src/emsdevice.cpp b/src/emsdevice.cpp
index e5af41ed2..5c7847829 100644
--- a/src/emsdevice.cpp
+++ b/src/emsdevice.cpp
@@ -333,6 +333,16 @@ bool EMSdevice::is_fetch(uint16_t telegram_id) const {
     return false;
 }
 
+// get status of automatic fetch for a telegramID
+bool EMSdevice::is_received(uint16_t telegram_id) const {
+    for (const auto & tf : telegram_functions_) {
+        if (tf.telegram_type_id_ == telegram_id) {
+            return tf.received_;
+        }
+    }
+    return false;
+}
+
 // check for a tag to create a nest
 bool EMSdevice::has_tags(const uint8_t tag) const {
     for (const auto & dv : devicevalues_) {
diff --git a/src/emsdevice.h b/src/emsdevice.h
index 7060a119d..afd0f2aea 100644
--- a/src/emsdevice.h
+++ b/src/emsdevice.h
@@ -316,6 +316,7 @@ class EMSdevice {
     void fetch_values();
     void toggle_fetch(uint16_t telegram_id, bool toggle);
     bool is_fetch(uint16_t telegram_id) const;
+    bool is_received(uint16_t telegram_id) const;
     bool has_telegram_id(uint16_t id) const;
     void ha_config_clear();
 
diff --git a/src/locale_translations.h b/src/locale_translations.h
index 3f8b91a8f..e82f1f585 100644
--- a/src/locale_translations.h
+++ b/src/locale_translations.h
@@ -614,7 +614,7 @@ MAKE_TRANSLATION(wwChargeDuration, "wwchargeduration", "charge duration", "Laded
 MAKE_TRANSLATION(wwDisinfect, "wwdisinfect", "disinfection", "Desinfektion", "Desinfectie", "Desinfektion", "dezynfekcja termiczna", "desinfeksjon", "désinfection", "dezenfeksiyon", "disinfezione")
 MAKE_TRANSLATION(wwDisinfectDay, "wwdisinfectday", "disinfection day", "Desinfektionstag", "Desinfectiedag", "Desinfektionsdag", "dzień dezynfekcji termicznej", "desinfeksjonsdag", "jour désinfection", "dezenfeksiyon günü", "giorno disinfezione")
 MAKE_TRANSLATION(wwDisinfectHour, "wwdisinfecthour", "disinfection hour", "Desinfektionsstunde", "Desinfectieuur", "Desinfektionstimme", "godzina dezynfekcji termicznej", "desinfeksjonstime", "heure désinfection", "dezenfeksiyon saati", "ora disinfezione")
-MAKE_TRANSLATION(wwDisinfectTime, "wwdisinfecttime", "disinfection time", "Desinfektionsdauer", "Desinfectietijd", "Desinfektionstid", "maksymalny czas trwania dezynfekcji termicznej", "desinfeksjonstid", "durée désinfection", "dezenfeksiyon zamanı", "orario disinfezione")
+MAKE_TRANSLATION(wwDisinfectTime, "wwdisinfecttime", "disinfection time", "Desinfektionszeit", "Desinfectietijd", "Desinfektionstid", "maksymalny czas trwania dezynfekcji termicznej", "desinfeksjonstid", "durée désinfection", "dezenfeksiyon zamanı", "orario disinfezione")
 MAKE_TRANSLATION(wwDailyHeating, "wwdailyheating", "daily heating", "täglich Heizen", "Dagelijks opwarmen", "Daglig Uppvärmning", "codzienne nagrzewanie", "daglig oppvarming", "chauffage quotidien", "günlük ısıtma", "riscaldamento giornaliero")
 MAKE_TRANSLATION(wwDailyHeatTime, "wwdailyheattime", "daily heating time", "tägliche Heizzeit", "Tijd dagelijkse opwarming", "Daglig Uppvärmningstid", "czas trwania codziennego nagrzewania", "daglig oppvarmingstid", "heure chauffage quotidien", "günlük ısıtma süresi", "orario riscaldamento giornaliero")