diff --git a/custom_components/econet300/const.py b/custom_components/econet300/const.py
index 7bd2aa6..49f1d22 100644
--- a/custom_components/econet300/const.py
+++ b/custom_components/econet300/const.py
@@ -261,9 +261,9 @@
         else ("OFF" if str(x).strip() == "false" else None)
     ),
     "lambdaStatus": (
-        lambda x: "STOP"
+        lambda x: "stop"
         if x == 0
-        else ("START" if x == 1 else ("Working" if x == 2 else "Unknown"))
+        else ("start" if x == 1 else ("working" if x == 2 else "unknown"))
     ),
     "status_wifi": lambda x: "Connected" if x == 1 else "Disconnected",
     "main_server": lambda x: "Server available" if x == 1 else "Server not available",
diff --git a/custom_components/econet300/strings.json b/custom_components/econet300/strings.json
index 874f599..7025ca6 100644
--- a/custom_components/econet300/strings.json
+++ b/custom_components/econet300/strings.json
@@ -36,7 +36,15 @@
       "fuel_level": { "name": "Fuel level" },
       "fan_power": { "name": "Fan power" },
       "fan_works": { "name": "Fan" },
-      "lambda_status": { "name": "Lambda status" },
+      "lambda_status": {
+        "name": "Lambda status",
+        "state": {
+          "stop": "Stop",
+          "start": "Start",
+          "working": "Working",
+          "unknown": "Unknown"
+        }
+      },
       "lambda_set": { "name": "Lambda set" },
       "lambda_level": { "name": "Lambda level" },
       "main_server": { "name": "Main server" },
diff --git a/custom_components/econet300/translations/en.json b/custom_components/econet300/translations/en.json
index bcba107..94f5a80 100644
--- a/custom_components/econet300/translations/en.json
+++ b/custom_components/econet300/translations/en.json
@@ -36,7 +36,15 @@
       "fuel_level": { "name": "Fuel level" },
       "fan_power": { "name": "Fan power" },
       "fan_works": { "name": "Fan" },
-      "lambda_status": { "name": "Lambda status" },
+      "lambda_status": {
+        "name": "Lambda status",
+        "state": {
+          "stop": "Stop",
+          "start": "Start",
+          "working": "Working",
+          "unknown": "Unknown"
+        }
+      },
       "lambda_set": { "name": "Lambda set" },
       "lambda_level": { "name": "Lambda level" },
       "main_server": { "name": "Main server" },
diff --git a/custom_components/econet300/translations/pl.json b/custom_components/econet300/translations/pl.json
index 1049005..d8fe0a3 100644
--- a/custom_components/econet300/translations/pl.json
+++ b/custom_components/econet300/translations/pl.json
@@ -36,7 +36,15 @@
       "fuel_level": { "name": "Poziom paliwa" },
       "fan_works": { "name": "Fan" },
       "fan_power": { "name": "Moc nadmuchu" },
-      "lambda_status": { "name": "Lambda status" },
+      "lambda_status": {
+        "name": "Lambda status",
+        "state": {
+          "stop": "Stop",
+          "start": "Start",
+          "working": "Working",
+          "unknown": "Unknown"
+        }
+      },
       "lambda_set": { "name": "Lambda set" },
       "lambda_level": { "name": "Czujnik Lambda" },
       "mixer_temp1": { "name": "Temp. mieszacza 1" },