Transformer is blown, there is also no low voltage fuse installed, I will install a low voltage fuse to help prevent transformer, new owners purchased building and had no knowledge of if equipment worked in the last, it is older equipment I made customer aware after replacing transformer I will then be able to start equipment and check the rest of the components it is possible after replacing transformer there could be underlying issues.. there are safeties by passed for the furnace I recommend making sure all safeties are wired back up and working properly prior operating furnace, 1988 horizontal furnace…customers will need an electrician to repair electrical issues where the hanging horizontal unit i serviced is located…they are running extension cords to power ceiling fans… in order to send power to furnace you have to turn on two light switches this a 1988 model equipment I recommend upgrading equipment for safety and reliability concerns…call 4057937867 ask for Mark…we will have t