Complaint: No Heat ( 2 Modine Heater ) 1- is working and wants to serviced 2- is Not Working at all Heater #2 (south) had a pilot light that had gone out. Most likely when one of the bay doors was open and it was very windy. Lit pilot light and performed check up on both systems. Oiled both motors and inspected burners. South system also had a very loud relay that was beginning to fail. Replaced relay on south system. Everything else was clean and checked out well. Both heaters are operating normally at this time.