Unusual HVAC Smells and What They Mean
When you turn your air conditioner back on after a break in use, you may notice some funny smells coming from the HVAC system. What in the heck is that?
There are several common causes to be aware of – and some may require immediate attention or for a service technician maintenance check. Here are some of the main reasons you may experience different HVAC smells emanating through your home.
A rotten egg smell coming from the HVAC system could be a natural gas leak.
Natural gas is odorless but has a distinctive rotten egg smell when an additive called mercaptan is added to natural gas to make it easier for us to detect leaks. It is added as a safety measure to increase detection and prevent major incidents.
If you notice a strong, unpleasant sewage smell coming from your HVAC system, sewage is likely the culprit.
Here are some things that may cause smells in your system:
If any drains near your home are clogged or backed up, then sewage can build up in the drainpipes. And the sewage may travel through your HVAC duck system and into your home. The sewage will not only cause an unpleasant smell, but the sewage can actually leak into your furnace and air conditioning equipment, causing extensive damage. You should immediately call a plumber and HVAC technician if you notice this problem.
Water or sewer leaks
If your HVAC system is next to a fractured sewer line, this could lead to sewerage getting into your HVAC system and vents. This will cause damage to the equipment if it isn’t addressed quickly enough. And you’ll want to promptly get rid of the foul smell passing through your home.
There are several reasons you might get a dirty sock smell from your HVAC system.
Sometimes dirty sock smells aren’t caused by something serious like mildew or mold growth. Sometimes, they’re caused by something simple like dead bugs on a vent grill or dust bunnies that get stuck inside them. These things may seem silly, but they can cause some serious odors!
The musty smell that comes from the HVAC system is not only a sign of poor air quality but also an indication of high humidity that may have been caused by a leak in your home a duct leak.
The air ducts in your home can become clogged with dust, dirt, and other debris over time. This can result in poor air quality and even cause serious health problems. Especially if the musty smell is caused by mold growth on coils or ductwork.
Hire a professional to carry out an inspection and clean. In addition to removing the musty odor, cleaning out your HVAC system will ensure that your heating and cooling system runs efficiently.
Electrical odors can be caused by several different issues. The most common reason for the smell is an electrical short circuit when two wires touch each other. This can happen at any point in the system and is usually caused by damaged wiring or water exposure. However, it can also be caused by loose connections or worn-out components like wire insulation or fuses.
If you smell an electrical odor from your HVAC system, immediately contact a technician for help.
You can smell oil in your HVAC system because the oil used in compressors and motors has leaked out of its sealed containers. This can happen if the seals have failed or there isn’t enough oil in the system.
You may also notice oily stains on your floor or carpet, which are another sign of a leak in your unit.Struggling to find the source of your HVAC smells? Contact the HVAC experts at Bell Bros and eliminate those annoying odors.