I did any inspection today and the buyer’s agent told me that the seller claims that the furnace is only running at 30% and is in need of replacement. It was an electric furnace with a heat pump. Definitely older units probably 26 years old. Both operated for me The furnace there was about a 25° difference between intake and exhaust temperature heat pump was about 35 to 40 degrees difference. It was too cold to run the AC on the heat pump. Did I not look at something? How would somebody go about knowing that’s running at only 30%. The furnace has not been serviced since 2014 so doesn’t appear like there was a tech in there recently they gave them that kind of information.
I did pull the front covers off and the unit was not excessively dirty.
My only thought is maybe some of the elements inside aren’t working right? Do other inspectors pull off additional covers exposing heater elements in the furnace. I have never torn into an electric furnace to try to find the elements. I’ve watched a couple videos and the ones I saw said you have to remove a whole bunch of stuff.