An unusual odor emanating from your HVAC system is one issue that should never be ignored. Most smells are typically not dangerous, but they are a clear sign it is time to contact an HVAC technician for professional help. Here is a closer look at some of the most common HVAC smells and what is creating them.
Heating and cooling systems will often give off a musty or dusty smell when they are turned on for the first time of the year. In most cases, this is nothing more than some extra dust particles being burned off in the furnace or condenser. It is also a sign that your HVAC system needs to be thoroughly cleaned and serviced.
Many utility companies add odor-causing substances to their natural gas so that families will notice leaks. If you or anyone in your family notices the smell of rotten eggs, then you must take immediate action. You should first evacuate your home, turn off the main gas line, and then call your utility company or the fire department.
Many HVAC systems have a component known as a heat pump. Heat pumps create the perfect environment for mold, mildew, and other organic compounds that smell very similar to dirty socks. Scheduling seasonal service calls once or twice a year is a simple way to avoid this issue.
HVAC systems that produce metallic or electrical smells are generally overheating and in need of immediate repairs. When these issues are not addressed, the high temperatures can melt vital parts, such as wire covers, plastic caps, and rubber gaskets.
Facts about Stachybotryschartarum and Other Molds, www.cdc.gov
Natural gas safety, www.puco.ohio.gov