i accidently press emh and the screen went blank so did the a/c and heat now I have neither.?
- MarkLv 74 weeks ago
I assume you are talking about your thermostat for the heat and a/c from your heat pump and e.m.h. is the Emergency Heat selection.
I would change the category to Home & Garden/Maintenance to get an answer.
In the meantime, you have likely blow a fuse at the Condenser Disconnet box, the outdoor unit of your heat/air system, which will have to be reset.