Technician is fine. I’ve had new havac system for 2 years and it has been nothing but a nightmare.. It got installed by non hvac certified employees. Compressor went out in 1st year in air conditioning unit. Now control panel is out in heater. They can e 5 days later with the part now say it’s throwing another code. So he rerouted the system so emergency heat would come on. It came on but once it shut off it would not come on again. So now with temps going to the 20’s we still have no heat. System should be replaced or money given back so I can get a company that knows how to put a new unit in.