Index: firmware/App/Controllers/TemperatureSensors.c
===================================================================
diff -u -rfba89d67dd2bef913e85a13563e2aa49f0e2e2f5 -rebbb1f85550a1f9b8f946655f7b2b63f76fbf67d
--- firmware/App/Controllers/TemperatureSensors.c	(.../TemperatureSensors.c)	(revision fba89d67dd2bef913e85a13563e2aa49f0e2e2f5)
+++ firmware/App/Controllers/TemperatureSensors.c	(.../TemperatureSensors.c)	(revision ebbb1f85550a1f9b8f946655f7b2b63f76fbf67d)
@@ -53,7 +53,7 @@
 #define SHIFT_BITS_BY_2_FOR_AVERAGING                           2U                                              ///< Shift the ADCs of the temperature sensors by 2 to average them.
 #define INLET_WATER_TEMPERATURE_PERSISTENCE_PERIOD             ( 5 * MS_PER_SECOND )                            ///< Persistence period for temperature sensors out of range error period.
 
-#define MIN_WATER_INPUT_TEMPERATURE                             10U                                             ///< Minimum water input temperature.
+#define MIN_WATER_INPUT_TEMPERATURE                             22U                                             ///< Minimum water input temperature.
 #define MAX_WATER_INPUT_TEMPERATURE                             35U                                             ///< Maximum water input temperature.
 
 #define HEATERS_INTERNAL_TEMPERTURE_CALCULATION_INTERVAL        20U                                             ///< Time interval that is used to calculate the heaters internal temperature.
@@ -332,12 +332,14 @@
  *************************************************************************/
 void checkInletWaterTemperature( void )
 {
+#ifndef DISABLE_WATER_QUALITY_CHECK
     F32 const temperature = getTemperatureValue( TEMPSENSORS_INLET_PRIMARY_HEATER );
     BOOL const isWaterTempTooHigh = temperature > MAX_WATER_INPUT_TEMPERATURE;
     BOOL const isWaterTempTooLow = temperature < MIN_WATER_INPUT_TEMPERATURE;
 
     checkPersistentAlarm( ALARM_ID_INLET_WATER_HIGH_TEMPERATURE, isWaterTempTooHigh, temperature, MAX_WATER_INPUT_TEMPERATURE );
     checkPersistentAlarm( ALARM_ID_INLET_WATER_LOW_TEMPERATURE, isWaterTempTooLow, temperature, MIN_WATER_INPUT_TEMPERATURE );
+#endif
 }
 
 /*********************************************************************//**