diff --git a/src/ems-esp.cpp b/src/ems-esp.cpp
index 5a2c16b4d..6de507d08 100644
--- a/src/ems-esp.cpp
+++ b/src/ems-esp.cpp
@@ -442,7 +442,7 @@ void showInfo() {
                     _renderIntValue(" Vacation temperature", "C", EMS_Thermostat.hc[hc_num - 1].holidaytemp, 2); // convert to a single byte * 2
                 }
                 if (EMS_Thermostat.hc[hc_num - 1].circuitcalctemp != EMS_VALUE_USHORT_NOTSET)
-                    _renderIntValue(" calculatet flow temperature", "C",EMS_Thermostat.hc[hc_num - 1].circuitcalctemp);
+                    _renderIntValue(" Calculatet flow temperature", "C",EMS_Thermostat.hc[hc_num - 1].circuitcalctemp);
 
                 // Render Thermostat Mode
                 _EMS_THERMOSTAT_MODE thermoMode;
diff --git a/src/ems.cpp b/src/ems.cpp
index 53d7d96a7..332ab5b6b 100644
--- a/src/ems.cpp
+++ b/src/ems.cpp
@@ -1240,9 +1240,9 @@ void _process_MMPLUSStatusMessage(_EMS_RxTelegram * EMS_RxTelegram) {
     _setValue(EMS_RxTelegram, &EMS_Mixing.hc[hc].valveStatus, EMS_OFFSET_MMPLUSStatusMessage_valve_status);
 }
 
-// 0xAB, 0xAC - for MM10 HC1 and HC2 on a switch
+// 0xAB for MM10 HC2 
 void _process_MMStatusMessage(_EMS_RxTelegram * EMS_RxTelegram) {
-    uint8_t hc = (EMS_RxTelegram->type - EMS_TYPE_MMStatusMessage_HC1); // 0 to 3
+    uint8_t hc = (EMS_RxTelegram->type - EMS_TYPE_MMStatusMessage_HC2+1); // 1 to 3
     if (hc >= EMS_THERMOSTAT_MAXHC) {
         return; // invalid type
     }
@@ -2732,7 +2732,6 @@ const _EMS_Type EMS_Types[] = {
     // Mixing devices MM10 - MM400
     {EMS_DEVICE_UPDATE_FLAG_MIXING, EMS_TYPE_MMPLUSStatusMessage_HC1, "MMPLUSStatusMessage_HC1", _process_MMPLUSStatusMessage},
     {EMS_DEVICE_UPDATE_FLAG_MIXING, EMS_TYPE_MMPLUSStatusMessage_HC2, "MMPLUSStatusMessage_HC2", _process_MMPLUSStatusMessage},
-    {EMS_DEVICE_UPDATE_FLAG_MIXING, EMS_TYPE_MMStatusMessage_HC1, "MMStatusMessage", _process_MMStatusMessage},
     {EMS_DEVICE_UPDATE_FLAG_MIXING, EMS_TYPE_MMStatusMessage_HC2, "MMStatusMessage", _process_MMStatusMessage}
 
 };
diff --git a/src/ems_devices.h b/src/ems_devices.h
index 3dc105356..8542f7488 100644
--- a/src/ems_devices.h
+++ b/src/ems_devices.h
@@ -198,8 +198,7 @@ const _EMS_Device_Types EMS_Devices_Types[] = {
 #define EMS_OFFSET_MMPLUSStatusMessage_valve_status 2 // valve in percent
 
 // MM10
-#define EMS_TYPE_MMStatusMessage_HC1 0xAB         // mixer status HC1
-#define EMS_TYPE_MMStatusMessage_HC2 0xAC         // mixer status HC2
+#define EMS_TYPE_MMStatusMessage_HC2 0xAB         // mixer status HC2
 #define EMS_OFFSET_MMStatusMessage_flow_set 0     // flow setpoint
 #define EMS_OFFSET_MMStatusMessage_flow_temp 1    // flow temperature
 #define EMS_OFFSET_MMStatusMessage_pump_mod 3     // pump modulation in percent