After 20 minutes he told me that it was most likely just an excess amount of dust, because he could see no issue involving the HVAC system.
I wasn’t that concerned when I turned my heating unit on for the first time in 6 months, and I smelled a burning smell. This is a common occurrence most people will experience if your heating device goes unused in the summer months. The burning smell is just caused by the dust that was built up being burned off. The smell usually goes away within an hour or so. However, after a few hours had passed and I still smelled the burning smell, I did begin to grow concerned. After a day and the smell had only faded a little bit, I was definitely concerned. Even though my heating unit seemed to be working just fine, and was heating the entire house well, I still decided to call a HVAC worker just to be on the safe side. The heating and A/C worker came a few hours later and examined the HVAC machine. After 20 minutes he told me that it was most likely just an excess amount of dust, because he could see no issue involving the HVAC system. He told me to give it another day or so, and if the smell still persists to call the air conditioning corporation again. While this was reassuring, I still couldn’t help but to worry. I turned the furnace system back on and waited to see if the smell would go away. It turned out the A/C repairman’s advice was true, because another day later, the burning smell had completely disappeared, much to my relief.