Call Legend Services, Inc. and we will quickly schedule our HVAC tech to inspect your furnace and while he is there, perform a maintenance clean and tune! In St. Louis Park, 55426 a customer called stating her furnace was making odd noises and wasn’t holding heat. Our tech cleaned the Pressure Port on the Inducer Fan and Blew out the line, cleaned the flame sensor and ran a combustion test afterwards to ensure it was running at its highest efficiency!