Instruct: Classify Amazon reviews into positive or negative sentiment
Query: worked until it burned up

We had this heater in our sons room for 2 winters. Easy to set and maintained good a temperature even in the coldest nights. We loved it.. until.... we came home tonight to find his room was 53 degrees and the heater was not working. After checking the plug and all settings, I took it out of the room for further inspection. I Pulled off the control panel and found that one of wires coming from the timer had burnt the wire off of the terminal. I repair electrical systems for my profession and know how much amperage it takes for this to happen. I know that this could have been a much worse situation and am thankful that our house is still standing. After reading many other reviews that sound just like this one, I am ashamed at Delonghi for not recalling an obviously defective product.