How do I reset my heater if it overheats? Remove the obstruction or situation that caused the unit to overheat. Turn the heater to the OFF setting (and turn the thermostat to HI) Unplug the heater and wait 5 to 10 minutes for the heater to cool down. Plug the heater back in and resume operation. Click to see full answer. Also, how do I reset my space heater?May be because of this feature your heater may not be working. SOLUTION: So what you can do is that you can reset the feature by moving the power switch to the off position if the device does not turn back on. Unplug the device and let it cool down for 10-15 minutes. Plug it back again and turn the switch on.Additionally, why does my plug in heater keep turning off? Here are some common reasons that portable electric heaters shut off: The thermostat on the heater is not set high enough. The heater needs to be reset due to an overheat situation. If the unit has tip-over safety protection: To reset, simply place the heater in an upright position on a level surface. People also ask, how does a Holmes heater work? Turn the Thermostat Control clockwise to the highest position to start heater. Allow heater to operate and warm up the room. When the desired temperature/comfort level is reached, lower the temperature setting by turning the Thermostat Control counter-clockwise until the heater stops operating.Are Holmes space heaters safe? More on Heating The Holmes Smart Wifi-Enabled WeMo is not a highly portable space heater, nor is it very safe to have around children. However, it does perform well at full-room heating and comes with overheat protection, a timer and a smartphone app so you can remotely control it.