Index: firmware/App/Controllers/Thermistors.c
===================================================================
diff -u -r28b5f2e7f757647145a82a39aca0a5f3652c68a1 -rc8fa40dde08a25bf61fae9f4fe770606a234db57
--- firmware/App/Controllers/Thermistors.c	(.../Thermistors.c)	(revision 28b5f2e7f757647145a82a39aca0a5f3652c68a1)
+++ firmware/App/Controllers/Thermistors.c	(.../Thermistors.c)	(revision c8fa40dde08a25bf61fae9f4fe770606a234db57)
@@ -320,7 +320,7 @@
     for ( thermistor = THERMISTOR_ONBOARD_NTC; thermistor < NUM_OF_THERMISTORS; thermistor++ )
     {
         temperature = getThermistorTemperatureValue( thermistor );
-        BOOL const isTempOutOfRange = ( temperature > MAX_ALLOWED_TEMPERATURE ) && ( temperature < MIN_ALLOWED_TEMPERATURE );
+        BOOL const isTempOutOfRange = ( temperature > MAX_ALLOWED_TEMPERATURE ) || ( temperature < MIN_ALLOWED_TEMPERATURE );
 
         checkPersistentAlarm( ALARM_ID_DG_THERMISTORS_TEMPERATURE_OUT_OF_RANGE, isTempOutOfRange, temperature, MAX_ALLOWED_TEMPERATURE );
     }