New Hvac System Smell

Other contaminants in your hvac system will do the same if left unattended.

New hvac system smell. When the moisture doesn t drain properly it can escape into the ducts and cause mold. Also known as bacterial growth mold and mildew will circulate through your indoor air once it has settled in your air conditioner. Moisture and debris in the ducts are often the next best culprits for hvac system odors. Electrical odors can have a variety of causes.

Hvac equipment odor sources implications hazards repairs heating system odors. The homeowner s guide to the 7 causes of bad ac smells must mildew and mold if there is excess humidity or moisture in the hvac system you could end up with mold and mildew flowing through the ductwork. Mold and mildew growth is the most common cause of bad smells in your ac system. One of the most common odors you could smell in your hvac system is a burning electrical smell.

Smells from improperly functioning heating or air conditioning equipment can come from a wide range of sources as we will list here. For example there may be bad wiring in your air conditioner wiring or your motor may be burning out. But if combustion gases from a heating or hot water system or possibly a wood stove or coal stove are not being safely vented to outdoors you may smell other telltale products of combustion including those gases entering the duct system either through a leak in the heat exchanger or by return air duct system defects that draw heating flue gases into the duct system through that route. Decomposing rodents and decaying items like food dropped into the ducts through the floor vents is another.

You may smell heating combustion flue gases. Be certain that you have working co detectors as well as smoke. A must or mildew smell coming from your heater is usually a sign of mold or mildew in either your heating system or ductwork. The second and more senior tech said that it s normal to have unusual smells with a new hvac system and suggested that it smelled like the insulation which lines the new inside unit.

If the smell doesn t go away you should first clean or replace your filters. When the ac is running there is a lot of condensation within the unit. My theory is that the inside unit being heated by the furnace underneath it is causing some outgassing of volatiles left over from the manufacturing process which is not the most comforting thought.