Product review (3 stars): Operation manual
No operational manual was included. Contacted the seller and was told the manual would be sent that day. It's been a month and I still have not received the manual. In addition, Clock gains about an hour a day and is military time which can't be changed.. Contacted seller today. Will see if I get a response. My main concern is what the level of service will be if something major goes wrong.

I found the manual on line. Must be foreign made because translation to English is very bad. Example: Setting Clock:  When the hood stay Off keep touching this button 3 seconds, and then the hood stay clock set.