Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Caution lights up and heater shuts down after only a few minutes

The way this heater is suppposed to work is you choose your room setting and then turn the heater on. And then when it reaches your desired room temperature, you turn the thermostat control towards frost watch and that will turn the unit off. It should then cycle on and off to maintain the temperature.What it actually does:It's only been on a few minutes and the tempeature reading is just 12C but the heater already shuts off and the caution light is on.Terribly disappointing product from a brand that you expect a lot from.