Any unusual smells coming from your HVAC system are most likely harmless, but it is always better to err on the side of caution when it comes to your family's safety. Read ahead for a quick look at some of the most common air conditioning system smells and what you can do to deal with or get rid of them.
Dirty Sock Syndrome
Just as the name implies, dirty sock syndrome will result in your home smelling like a locker room. If your air conditioning system has a heat pump, then this smell is a clear sign that it needs to be cleaned. In addition to cleaning the outdoor unit, you might also want to ask your HVAC technician about having the heat pump coated with a mold-resistant sealant.
An Electrical Odor
An electrical odor coming from your HVAC system is most likely the result of overheating wires or blowers. Over time, any excess heat produced by the electricity and moving parts will begin to melt hoses, seals, insulation, and wires. Homeowners should immediately turn off the air conditioner and contact a technician if they notice these types of electrical odors.
A Burning Odor
A burning smell coming from your vents is another issue that should never be taken lightly. If this smell is accompanied by smoke, then you must immediately evacuate your home and contact the fire department. Luckily, these smells are typically caused by debris getting stuck in the ducts or melting next to the heat pump.
Many families will turn on their air conditioner for the first time of the year only to be hit by the smell of rotten eggs. In most cases, this particular smell is caused by dead rodents. Having your ducts cleaned at least twice a year is the best way to avoid this smelly issue.