diff --git a/CHANGELOG_LATEST.md b/CHANGELOG_LATEST.md
index 1ebd80cd7..da1031200 100644
--- a/CHANGELOG_LATEST.md
+++ b/CHANGELOG_LATEST.md
@@ -13,6 +13,7 @@ For more details go to [docs.emsesp.org](https://docs.emsesp.org/).
 - Mask bits for bool custom entities
 - thermostat `reduce threshold` [#2288](https://github.com/emsesp/EMS-ESP32/issues/2288)
 - thermostat `absent` [#1957](https://github.com/emsesp/EMS-ESP32/issues/1957)
+- CR11 thermostat [#2295](https://github.com/emsesp/EMS-ESP32/issues/2295)
 
 ## Fixed
 
@@ -20,6 +21,7 @@ For more details go to [docs.emsesp.org](https://docs.emsesp.org/).
 - modbus command path to `api/` [#2276](https://github.com/emsesp/EMS-ESP32/issues/2276)
 - info command for devices without entity-commands [#2274](https://github.com/emsesp/EMS-ESP32/issues/2274)
 - CW100 settings telegram 0x241 [#2290](https://github.com/emsesp/EMS-ESP32/issues/2290)
+- modbus signed 8bit values [#2294](https://github.com/emsesp/EMS-ESP32/issues/2294)
 
 ## Changed
 
diff --git a/src/device_library.h b/src/device_library.h
index e3a5c1d67..4d4ebb457 100644
--- a/src/device_library.h
+++ b/src/device_library.h
@@ -82,6 +82,7 @@
 
 // Thermostat - Buderus/Nefit/Bosch specific - 0x17 / 0x10 / 0x18 / 0x19-0x1B for hc2-4 / 0x38
 {  4, DeviceType::THERMOSTAT, "UI800, BC400", DeviceFlags::EMS_DEVICE_FLAG_BC400}, // 0x10
+{ 10, DeviceType::THERMOSTAT, "CR11", DeviceFlags::EMS_DEVICE_FLAG_RC100}, // 0x18
 { 65, DeviceType::THERMOSTAT, "RC10", DeviceFlags::EMS_DEVICE_FLAG_RC20_N},// 0x17
 { 67, DeviceType::THERMOSTAT, "RC30", DeviceFlags::EMS_DEVICE_FLAG_RC30_N},// 0x10 - based on RC35
 { 77, DeviceType::THERMOSTAT, "RC20, Moduline 300", DeviceFlags::EMS_DEVICE_FLAG_RC20},// 0x17
diff --git a/src/devices/thermostat.cpp b/src/devices/thermostat.cpp
index 84f049a70..e2fce386f 100644
--- a/src/devices/thermostat.cpp
+++ b/src/devices/thermostat.cpp
@@ -1112,6 +1112,9 @@ void Thermostat::process_RC300Set(std::shared_ptr<const Telegram> telegram) {
     // set mode for CR120, BC400, https://github.com/emsesp/EMS-ESP32/discussions/1779
     has_update(telegram, hc->mode_new, 21);  // for BC400, CR120
     has_bitupdate(telegram, hc->mode, 0, 0); // RC300, RC100
+    if (hc->mode == EMS_VALUE_UINT8_NOTSET) {
+        has_update(hc->mode, 0); // set manual for CR11
+    }
     has_update(telegram, hc->daytemp, 2);    // is * 2
     has_update(telegram, hc->nighttemp, 4);  // is * 2
 
@@ -4643,16 +4646,18 @@ void Thermostat::register_device_values_hc(std::shared_ptr<Thermostat::HeatingCi
         } else {
             register_device_value(tag, &hc->control, DeviceValueType::ENUM, FL_(enum_control1), FL_(control), DeviceValueUOM::NONE, MAKE_CF_CB(set_control));
         }
-        register_device_value(tag,
-                              &hc->remotetemp,
-                              DeviceValueType::CMD,
-                              DeviceValueNumOp::DV_NUMOP_DIV10,
-                              FL_(remotetemp),
-                              DeviceValueUOM::DEGREES,
-                              MAKE_CF_CB(set_remotetemp),
-                              -1,
-                              101);
-        register_device_value(tag, &hc->remotehum, DeviceValueType::CMD, FL_(remotehum), DeviceValueUOM::PERCENT, MAKE_CF_CB(set_remotehum), -1, 101);
+        if (model != EMSdevice::EMS_DEVICE_FLAG_RC100 && model != EMSdevice::EMS_DEVICE_FLAG_CR120) {
+            register_device_value(tag,
+                                  &hc->remotetemp,
+                                  DeviceValueType::CMD,
+                                  DeviceValueNumOp::DV_NUMOP_DIV10,
+                                  FL_(remotetemp),
+                                  DeviceValueUOM::DEGREES,
+                                  MAKE_CF_CB(set_remotetemp),
+                                  -1,
+                                  101);
+            register_device_value(tag, &hc->remotehum, DeviceValueType::CMD, FL_(remotehum), DeviceValueUOM::PERCENT, MAKE_CF_CB(set_remotehum), -1, 101);
+        }
         register_device_value(tag, &hc->heatondelay, DeviceValueType::UINT8, FL_(heatondelay), DeviceValueUOM::HOURS, MAKE_CF_CB(set_heatondelay), 1, 48);
         register_device_value(tag, &hc->heatoffdelay, DeviceValueType::UINT8, FL_(heatoffdelay), DeviceValueUOM::HOURS, MAKE_CF_CB(set_heatoffdelay), 1, 48);
         register_device_value(tag, &hc->instantstart, DeviceValueType::UINT8, FL_(instantstart), DeviceValueUOM::K, MAKE_CF_CB(set_instantstart), 1, 10);
@@ -4669,7 +4674,13 @@ void Thermostat::register_device_values_hc(std::shared_ptr<Thermostat::HeatingCi
                               DeviceValueUOM::NONE,
                               MAKE_CF_CB(set_switchProgMode));
 
-        register_device_value(tag, &hc->redThreshold, DeviceValueType::INT8, DeviceValueNumOp::DV_NUMOP_DIV2, FL_(redthreshold), DeviceValueUOM::DEGREES, MAKE_CF_CB(set_redthreshold));
+        register_device_value(tag,
+                              &hc->redThreshold,
+                              DeviceValueType::INT8,
+                              DeviceValueNumOp::DV_NUMOP_DIV2,
+                              FL_(redthreshold),
+                              DeviceValueUOM::DEGREES,
+                              MAKE_CF_CB(set_redthreshold));
         break;
     case EMSdevice::EMS_DEVICE_FLAG_CRF:
         register_device_value(tag, &hc->mode, DeviceValueType::ENUM, FL_(enum_mode5), FL_(mode), DeviceValueUOM::NONE);
diff --git a/src/emsdevice.cpp b/src/emsdevice.cpp
index 8d0cf694b..648b85f92 100644
--- a/src/emsdevice.cpp
+++ b/src/emsdevice.cpp
@@ -1188,7 +1188,7 @@ void EMSdevice::setValueEnum(const void * value_p, const char * const ** options
             if (dv.options != options && Mqtt::ha_enabled()) {
                 dv.remove_state(DeviceValueState::DV_HA_CONFIG_CREATED);
             }
-            dv.options = options;
+            dv.options      = options;
             dv.options_size = Helpers::count_items(options);
             break;
         }
@@ -2063,7 +2063,7 @@ int EMSdevice::get_modbus_value(uint8_t tag, const std::string & shortname, std:
     else if (dv.type == DeviceValueType::INT8) {
         if (result.size() != 1)
             return -8;
-        result[0] = (uint16_t)(uint8_t)(*(int8_t *)(dv.value_p));
+        result[0] = (uint16_t)(int16_t)(*(int8_t *)(dv.value_p));
     } else if (dv.type == DeviceValueType::UINT8) {
         if (result.size() != 1)
             return -9;
@@ -2136,7 +2136,12 @@ int EMSdevice::modbus_value_to_json(uint8_t tag, const std::string & shortname,
             return -4;
         }
 
-        jsonValue["value"] = Helpers::numericoperator2scalefactor(dv.numeric_operator) * (float)((uint16_t)modbus_data[0] << 8 | (uint16_t)modbus_data[1]);
+        if (dv.type == DeviceValueType::INT8 || dv.type == DeviceValueType::INT16) { // handle signed
+            jsonValue["value"] =
+                Helpers::numericoperator2scalefactor(dv.numeric_operator) * (float)(int16_t)((uint16_t)modbus_data[0] << 8 | (uint16_t)modbus_data[1]);
+        } else {
+            jsonValue["value"] = Helpers::numericoperator2scalefactor(dv.numeric_operator) * (float)((uint16_t)modbus_data[0] << 8 | (uint16_t)modbus_data[1]);
+        }
     } else if (dv.type == DeviceValueType::UINT24 || dv.type == DeviceValueType::UINT32 || dv.type == DeviceValueType::TIME) {
         // these data types are 2 16 bit register
         if (modbus_data.size() != 4) {
diff --git a/src/modbus.cpp b/src/modbus.cpp
index 0c0432a15..5ed595590 100644
--- a/src/modbus.cpp
+++ b/src/modbus.cpp
@@ -310,8 +310,11 @@ ModbusMessage Modbus::handleRead(const ModbusMessage & request) {
         }
     }
     if (error_code) {
-        LOG_ERROR("Unable to read raw device value %s for tag=%d - error_code = %d", modbusInfo->short_name, (int)tag, error_code);
+        if (uuid::get_uptime_sec() > 60 || error_code < -2) { // suppress not found messages for the first minute
+            LOG_ERROR("Unable to read raw device value %s for tag=%d - error_code = %d", modbusInfo->short_name, (int)tag, error_code);
+        }
         response.setError(request.getServerID(), request.getFunctionCode(), SERVER_DEVICE_FAILURE);
+        return response;
     }
 
     response.add(request.getServerID());
diff --git a/src/version.h b/src/version.h
index 4d2245b33..b9f8ad86a 100644
--- a/src/version.h
+++ b/src/version.h
@@ -1 +1 @@
-#define EMSESP_APP_VERSION "3.7.2-dev.5"
\ No newline at end of file
+#define EMSESP_APP_VERSION "3.7.2-dev.6"
\ No newline at end of file