# Disaster happened - suddenly full heat and blown circuits **URL:** \ **Category:** Anova Support\ **Created:** [May 25, 2017, 11:37am UTC](https://community.anovaculinary.com/t/disaster-happened-suddenly-full-heat-and-blown-circuits/7199 "2017-05-25T11:37:20Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![vrolfsen](https://avatars.discourse-cdn.com/v4/letter/v/bbe5ce/32.png) [@vrolfsen](https://community.anovaculinary.com/u/vrolfsen)\ **Post date:** [May 25, 2017, 11:37am UTC](https://community.anovaculinary.com/t/disaster-happened-suddenly-full-heat-and-blown-circuits/7199/1 "2017-05-25T11:37:20Z")
Last weekend I was preparing and cooking for 45 people and when processing 4 kg of roast beef, disaster hit me hard. After about 2 hours, the 220V Precision Cooker boosted to almost boiling, the bags melted and cracked open, and then the fuse blew. I was downstairs sorting vegetables for 15 mins, so this must have happend fast. I could not pick the meat up with my hands – it was steaming hot! The day before, we where testing temperature for perfect scrambled eggs, and the Precision Cooker suddenly gave off a long beep - my first one ever. Just unplugged and started over, and it worked fine that evening. The Precision Cooker is from January 2015, and I’m wondering if I should try to repair it? It needs a thorough cleanup from all the meat juice, and I’ll just have to see if it blows the fuse again. Anyone have any cleaning tips? ---
**Author:** ![vrolfsen](https://avatars.discourse-cdn.com/v4/letter/v/bbe5ce/32.png) [@vrolfsen](https://community.anovaculinary.com/u/vrolfsen)\ **Post date:** [May 25, 2017, 11:40am UTC](https://community.anovaculinary.com/t/disaster-happened-suddenly-full-heat-and-blown-circuits/7199/2 "2017-05-25T11:40:07Z")
i will try the iFixit page and see if at least I can clean it, before testing it again. ---
**Author:** ![RichardOL](https://sea2.discourse-cdn.com/flex016/user_avatar/community.anovaculinary.com/richardol/32/701_2.png) [@RichardOL](https://community.anovaculinary.com/u/RichardOL)\ **Post date:** [May 25, 2017, 12:32pm UTC](https://community.anovaculinary.com/t/disaster-happened-suddenly-full-heat-and-blown-circuits/7199/3 "2017-05-25T12:32:02Z")
The outside tube comes off and gives you access enough to get the rest clean. The tube is a little stiff and it feel a little like you are forcing it, it is a partial twist to unlock it. I had one from early on and had the experience of having it go full blast but no fuse blown. I got it to go again a couple of times, then was not able to. I replaced it and have shielded the temperature dial from moisture which I thought was the basic problem. ---
**Author:** ![NateAnova](https://sea2.discourse-cdn.com/flex016/user_avatar/community.anovaculinary.com/nateanova/32/881_2.png) [@NateAnova](https://community.anovaculinary.com/u/NateAnova)\ **Post date:** [May 25, 2017, 8:06pm UTC](https://community.anovaculinary.com/t/disaster-happened-suddenly-full-heat-and-blown-circuits/7199/4 "2017-05-25T20:06:16Z")
Hi @vrolfsen, what a disaster to have your precision cooker malfunction during dinner prep! @RichardOL is correct in explaining how to clean the cooker. @AlyssaWOAH, do you have any other suggestions? ---
**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:** [May 25, 2017, 8:30pm UTC](https://community.anovaculinary.com/t/disaster-happened-suddenly-full-heat-and-blown-circuits/7199/5 "2017-05-25T20:30:20Z")
Woops! I thought I responded - but I failed to hit ‘Reply’! Hey @vrolfsen - I would definitely go ahead and clean your unit, that’s might be the answer to the problem! We do have a a couple of resources. I’ll link below: [How do I clean my precision cooker?](https://support.anovaculinary.com/hc/en-us/articles/204567914-How-do-I-clean-my-Precision-Cooker-) [Cleaning the circulator](https://support.anovaculinary.com/hc/en-us/articles/201552764-Cleaning-the-Circulator) [Disassembling and reassembling your Anova Precision Cooker](https://vimeo.com/202278631) Also, if it continues to be weird, just send a quick note to [support@anovaculinary.com](mailto:support@anovaculinary.com) and we’ll be more than happy to troubleshoot the issue! 🙂