Air conditioning systems are designed to produce odorless and cold air. So, when the AC suddenly emits a strange odor, homeowners should be alerted about a possible brewing issue involving the AC operation or mechanism. 

Homeowners must be aware of HVAC odors so that they can immediately deal with it. Knowing whom to call on is also essential, so it is best to have a good working relationship with a reliable and trustworthy HVAC Contractor who can provide emergency repair services when needed. 

Here are some of the most common HVAC odors that should alert homeowners to seek professional HVAC troubleshooting services:

Strange Air Conditioning Odors 

1. Electrical odor. This is a strange odor that the homeowner should never ignore. It means there is something seriously wrong with the HVAC mechanism, and it needs immediate attention from a professional air conditioning technician. There are three possible reasons for having this type of concern: filthy filters, motor problems, or wiring issues. Whatever the root problem, the homeowner should first make sure that the AC power source is turned off and that everyone at home is informed that they should refrain from turning the system on until the technician arrives and says it is safe to do so. 

2. Rotten egg smell. If the whole house smells like rotten eggs, then most likely there is something wrong that is happening in the AC system. An unpleasant egg-like odor indicates a natural gas leak. This is an emergency and should prompt the homeowner to open windows and doors, and evacuate everyone out of the house. Call up the gas company for immediate assistance to prevent any untoward incident. How to Prolong the Lifespan of an Air Conditioning Unit

3. Sourish, musty and moldy odor. A musty smell is for sure, a cue that molds are growing in the system or the HVAC ducts. While this is not an emergency repair situation, homeowners should understand that the presence of molds in itself can be a health hazard. This is especially true for homes that have immunocompromised household members.    

4. Gas-like odors. If the HVAC suddenly smells like gas, then most likely it is indeed gas. If the scent is emitted the first time, the heat pump is turned on, and then it is because of the heat pump. This is true for AC units that can also have a heating function. If not, then time to call an HVAC professional. How to Prepare for HVAC Installation at Home

To avoid encountering the odor issues mentioned above, homeowners need to have preventive maintenance inspections conducted on their AC systems. These thorough maintenance checks are essential in keeping the air conditioning system in good running condition. It also keeps the AC operating efficiently, energy-wise. Moreover, it prolongs the lifespan of the HVAC system.