diff --git a/cbpi/__init__.py b/cbpi/__init__.py
index 9fcb99b..d66daf9 100644
--- a/cbpi/__init__.py
+++ b/cbpi/__init__.py
@@ -1 +1 @@
-__version__ = "4.0.2.0.a13"
+__version__ = "4.0.2.0.a14"
diff --git a/cbpi/extension/FermentationStep/__init__.py b/cbpi/extension/FermentationStep/__init__.py
index f63fb9d..442c84b 100644
--- a/cbpi/extension/FermentationStep/__init__.py
+++ b/cbpi/extension/FermentationStep/__init__.py
@@ -113,7 +113,7 @@ class FermenterTargetTempStep(CBPiFermentationStep):
             logging.info("warmup")
             while self.running == True:
                 sensor_value = self.get_sensor_value(self.props.get("Sensor", None)).get("value")
-                if sensor_value >= self.fermenter.target_temp and self.timer.is_running is not True:
+                if sensor_value < 900 and sensor_value >= self.fermenter.target_temp and self.timer.is_running is not True:
                     self.timer.start()
                     self.timer.is_running = True
                 await asyncio.sleep(1)
@@ -121,7 +121,7 @@ class FermenterTargetTempStep(CBPiFermentationStep):
             logging.info("Cooldown")
             while self.running == True:
                 sensor_value = self.get_sensor_value(self.props.get("Sensor", None)).get("value")
-                if sensor_value <= self.fermenter.target_temp and self.timer.is_running is not True:
+                if sensor_value < 900 and sensor_value <= self.fermenter.target_temp and self.timer.is_running is not True:
                     self.timer.start()
                     self.timer.is_running = True
                 await asyncio.sleep(1)
diff --git a/cbpi/extension/mqtt_sensor/__init__.py b/cbpi/extension/mqtt_sensor/__init__.py
index 4564416..abc4fae 100644
--- a/cbpi/extension/mqtt_sensor/__init__.py
+++ b/cbpi/extension/mqtt_sensor/__init__.py
@@ -18,7 +18,7 @@ class MQTTSensor(CBPiSensor):
         if self.payload_text != None:
             self.payload_text = self.payload_text.split('.')
         self.mqtt_task = self.cbpi.satellite.subcribe(self.Topic, self.on_message)
-        self.value: int = 0
+        self.value: int = 999
 
     async def on_message(self, message):
         val = json.loads(message)