Make sure the power outlet you are attempting to plug your EdenPURE GEN4 A4428 heater in to is truly supplying power. Plug in another appliance or fixture such as a lamp to see if the power outlet works.
Next, make sure the master power switch/button is set to the “ON” position.
Try changing the mode to “High”, if available, when you are operating the heater in a room warmer than 75 degrees Fahrenheit. The heater will not operate if the temperature in the room is too high. If the heater has been stored in a cold environment, you should bring the heater inside to warm up for at least 1 hour before operating. Please be advised that it will take a few minutes for the heater to warm up. Once the heater has warmed up, the fan will start to blow air.
Finally, it’s important to clean the filter.