i just moved in to a new house and the Haier AC was here when i bought the house. this morning i unplugged the unit and when i went to plug it in this evening the digital temp control says E1. im not sure if this is the model number because i didnt buy this unit. it has an automatic trip protector and when i press the button it clicks and nothing happens. hopefully you can help me figure this problem out. thank you in adveance. Andy Cullen. My e-mail address is andycullen56@hotmail.com