diff --git a/pykirdy/kirdy_qt.py b/pykirdy/kirdy_qt.py
index 766ad83..2a5a845 100644
--- a/pykirdy/kirdy_qt.py
+++ b/pykirdy/kirdy_qt.py
@@ -385,7 +385,7 @@ class MainWindow(QtWidgets.QMainWindow):
             {'name': 'Upper Limit', 'type': 'float', 'value': 0, 'step': 1, 'decimals': 6, 'limits': (-273, 300),
             'suffix': '°C', 'lock': False, 'target': 'thermostat', 'action': 'set_temp_mon_upper_limit'},
             {'name': 'Lower Limit', 'type': 'float', 'value': 0, 'step': 1, 'decimals': 6, 'limits': (-273, 300),
-            'suffix': '°C', 'lock': False, 'target': 'thermostat', 'action': 'set_temp_mon_upper_limit'},
+            'suffix': '°C', 'lock': False, 'target': 'thermostat', 'action': 'set_temp_mon_lower_limit'},
         ]},
         {'name': 'Thermistor Settings','expanded': False, 'type': 'group', 'children': [
             {'name': 'T₀', 'type': 'float', 'value': 0, 'step': 1, 'decimals': 6, 'limits': (-273, 300),
diff --git a/src/net/cmd_handler.rs b/src/net/cmd_handler.rs
index 9a1da1a..3b3601d 100644
--- a/src/net/cmd_handler.rs
+++ b/src/net/cmd_handler.rs
@@ -545,7 +545,7 @@ pub fn execute_cmd(
                 Some(ThermostatCmdEnum::SetTecMaxINeg) => match cmd.json.data_f32 {
                     Some(val) => {
                         send_response(buffer, ResponseEnum::Acknowledge, None, socket);
-                        thermostat.set_max_i_pos(ElectricCurrent::new::<ampere>(val));
+                        thermostat.set_max_i_neg(ElectricCurrent::new::<ampere>(val));
                     }
                     None => {
                         send_response(