Help! Freezer alarm is giving a random chirp (only ONE chirp that lasts about one second). This occurs every 2, or 8, or 30 minutes or so....then maybe nothing for several hours. This started following a very brief (5 seconds or less) power outage. The yellow power light is on. The red temp alarm light is off. Internal temperature is 0'F. Have tried changing the 9volt battery twice. Have tried unplugging the freezer for 30seconds. Am not noticing any unusual sounds or external temperatures. Also tried turning on the quick-freeze option for a while, but the chirp continued. Pressing the Alarm Off button also does not silence the alarm.
I'm thinking the alarm itself is malfunctioning...suggestions???