Guide :Air Purifiers : HEPAtech 715 (2 Pack) Air Purifier
Model 717 no longer working...can this be b/c i never changed filter?
I believe I've changed the pre-filter once since I've been using this Air Purifier (probably a year old). Recently, the Air Purifier stopped working (i.e., when I plug in AC power, no response in the LCD display - I remember that i should at least see something when it boots up). Question: Is my problem because I've never changed my filter??? Are there any additional troubleshooting steps that i should take??Pleeeeaase help...thanks in advance!