# Anove One turned off unexpectedly overnight. (1) is food safe? (2) how can I determine the cause? **URL:** \ **Category:** Anova Support\ **Tags:** safety\ **Created:** [January 14, 2015, 7:31pm UTC](https://community.anovaculinary.com/t/anove-one-turned-off-unexpectedly-overnight-1-is-food-safe-2-how-can-i-determine-the-cause/288 "2015-01-14T19:31:32Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![dsbaser](https://avatars.discourse-cdn.com/v4/letter/d/35a633/32.png) [@dsbaser](https://community.anovaculinary.com/u/dsbaser)\ **Post date:** [January 14, 2015, 7:31pm UTC](https://community.anovaculinary.com/t/anove-one-turned-off-unexpectedly-overnight-1-is-food-safe-2-how-can-i-determine-the-cause/288/1 "2015-01-14T19:31:32Z")
Somewhere around 50 hours into a 72 hour cook, my Anova One turned off overnight. When I found it in the morning, the cooker was powered on, but the motor/heater was not running. The water had dropped from 131 F to 108 F. I restarted the machine and it seemed to be working normally before I left for work. Questions: (1) is the food safe to eat? I quickly par-boiled the meat (30 seconds) before beginning the cook to kill surface bacteria, and I’d think 50 hours at 131 the food should be ok, but I want to check. (2) How can I figure out why the machine failed? I like doing long cooks, and having it fail and destroy a large piece of meet is pretty concerning. Thanks! ---
**Author:** ![jordan](https://sea2.discourse-cdn.com/flex016/user_avatar/community.anovaculinary.com/jordan/32/532_2.png) [@jordan](https://community.anovaculinary.com/u/jordan)\ **Post date:** [January 14, 2015, 11:05pm UTC](https://community.anovaculinary.com/t/anove-one-turned-off-unexpectedly-overnight-1-is-food-safe-2-how-can-i-determine-the-cause/288/2 "2015-01-14T23:05:02Z")
@dsbaser The food should be fine, if the bag wasn’t fully vacuum sealed (i.e. a ZipLock bag) you would also be able to smell whether it was bad because of the air surrounding it. If it was vacuum-sealed it would be a little more difficult to tell. Regarding the machine fail, you may want to try replacing the fuse. There is a spare fuse by the plug - “hide away drawer” pulls out. Please let me know if this helps! ---
**Author:** ![AlyssaWOAH](https://sea2.discourse-cdn.com/flex016/user_avatar/community.anovaculinary.com/alyssawoah/32/2946_2.png) [@AlyssaWOAH](https://community.anovaculinary.com/u/AlyssaWOAH)\ **Post date:** [January 24, 2019, 12:11am UTC](https://community.anovaculinary.com/t/anove-one-turned-off-unexpectedly-overnight-1-is-food-safe-2-how-can-i-determine-the-cause/288/3 "2019-01-24T00:11:52Z")
A post was merged into an existing topic: [Is firmware user upgradeable or not?](https://community.anovaculinary.com/t/is-firmware-user-upgradeable-or-not/13101)