Tech found heat strips not running with auxiliary heat call. Tech found thermostat sending power to w2 but not w1 at air handler board. White wire was tied to w2 and black to w1. Thermostat only has white wire connected and has no slot for w2. Tech tied white to w1 and w2 connections and found heat strip running with thermostat call. Tech found burning smell in heat strips and suspects heat strips have never ran. Tech informed customer once the dust is burned off the smell will go away. System is heating properly at this time. Supply temp is 116