Product review (1 stars): must have been a bad or loose connection
installed begininning of november and worked perfectly.  4 months later the connection of the wire to the quick disconnect melted.  must have been a bad or loose connection.  i rechecked thermistor resistance and other connections just to make sure it was not some other problem and found nothing wrong.  resistance was 12.8 kohms at 66 degree farenhiet.  right on target.