I arrived to perform a call-back service to a home I had recently been out to that was experiencing the same issues as before. Upon arrival system was not operational. Noticed led light on circuit board was off, took blower door off and noticed the door switch was not engaged fully and not sending voltage through. Checked 3amp fuse and it is good. System wasn’t getting 110v due to door switch not engaging. Put a zip tie on door switch to keep issues from happening again. System operational and cooling at departure.