Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Shuts off.

I bought this unit in January 2006 and it worked fine the first season (as others have described). In the 2006-2007 winter, it started doing that intermittent shutting off and this season I can't even get it to stay on long enough to heat up. If it does have something to do with a proximity snsor it is way too sensitive and Honeywell needs to let consumers know what it is (no object within __ feet), in case your room is too crowded for the heater. The other problem, of course, is a thermostat that is immediately next to the radiator. But this pales in comparison to the fact the after two seasons the radiator does not work at all!!! I will update if Honeywell does anything to rectify this...