Grocery Store / Super Center, Retail Mt. Pocono, PA – Daily operations unaffected at Walmart after sprinklers activate to control early morning fire September 22, 2015 viking210 No injuries or significant damage were reported in a fire occurring shortly before 6:30 a.m. Monday at the Mount Pocono Walmart, said Walmart corporate spokesperson Erin Hoffman. An HVAC unit malfunction started the fire, activating the sprinkler system which then damaged a small amount of store products in a back room, said Hoffman. The store was closed from 6:30 to 9 a.m., but daily operations otherwise will not be affected.