alt Hacker NewsI would agree, but the freezers going into high heat defrost mode seems like an intentional action from someone, whether that be incompetence or malice on the side of DeCA, or malice from a third party. If they got rid of the people commanding the freezers what to do, I feel like they'd just stay on whatever mode they were already on, rather than suddenly command all the freezers to defrost
Defrosting is very often automatic. That can involve mechanical timers, or software timers, or logic/code of any complexity. All of these things can be badly-implemented and/or become broken or stuck.
Maybe the mode they got stuck on was defrost.
If n is found to be greater than 100 and y subsequently never comes 'round to be 3, then defrost starts and runs forever.