An HVAC unit is essential in ensuring that your home in The Woodlands, TX is comfortable. It heats or cools to ensure the air is at your desired temperature. After a long summer or winter day, you want to head back home to a cool and refreshing house. But what happens when you enter your house and while walking past the HVAC vents, you are hit by a pungent smell? What should you do? You should have a heating and AC repair technician come over for an inspection.
The air produced by the HVAC system should be odorless. Hence, whenever you notice that the air coming from your unit has a smell, that is a sign that your HVAC unit has an underlying problem. If the issue isn’t fixed early, it might worsen and result in more expensive heating and air conditioning repairs. So, what might make your HVAC system produce that pungent smell?
Why Is Your HVAC System Throwing Smelly Air?
There are many reasons why your HVAC unit might be producing smelly air. Although DIY repairs aren’t recommended, it could prove helpful if you can give as many details as possible when you call an HVAC repair technician. The more accurate and detailed information you give, the more prepared the technician will be when they come for the repair. It also means that they will be able to perform more targeted repairs. Below are some main reasons your heating and AC unit might throw a pungent smell.
Frozen Evaporator Coils
An air conditioner absorbs the indoor warm air, removes any present humidity as the air cools, and later sends it back into your indoor space via the air ducts and vents. This only works if nothing blocks the airflow. This includes the air filters. However, debris and dirt might accumulate on the condenser and air ducts, restricting the airflow. This causes water droplets to form on your HVAC unit’s evaporator coils.
When the refrigerant starts cooling, the droplets start freezing. Hence, if you notice ice or frost forming on the evaporator, that could signify a blockage in the air ducts. The water mixing with the debris on the evaporator might throw a pungent smell you notice when passing near the HVAC system’s vents. Hence, enlist the help of reliable heating and AC repair professionals for further inspection when you notice a filthy smell from the vents.
The furnace is also why your heating and air conditioning system produces smelly air. As a component, your furnace might last for several years. However, the same cannot be said for some of its components. For instance, many furnaces sustain the issue of cracked heat exchangers. Whenever the heat exchanger gets damaged, the gap created will release a chemical-like smell that resembles formaldehyde. Have you noticed such a smell from the heating and air conditioning system lately? You should have a heating and AC repair technician inspect the unit to see if the heat exchanger is cracked. If it is, the technician should replace it immediately because it might result in carbon monoxide poisoning, fires, or furnace inefficiency.
Is your HVAC system gas-powered? Then the odor you smell might be caused by a gas leak. The natural gas used by your heating and air conditioning system is usually treated using sulfur or mercaptan, which gives it a distinctive rotten egg smell. Hence, if you suddenly notice a rotten egg smell from your air conditioner, that shows a gas leakage within the unit. You should have an HVAC technician come over for repairs in The Woodlands, TX.
The other reason you may notice a foul smell from the air your HVAC system produces is intake contamination. Most HVAC systems take air from outside, treat it and later pump it into your home. Hence, anything within proximity or near the intake system could alter the characteristics of the heated air. For instance, if the intake is near a sewer vent, you will likely notice a sewer-like smell.
Hence, the intake vents of your HVAC system should be placed away from garbage bins, toilets, and sewer vents. Suppose the technician determines that intake contamination is the reason why there is foul smell. In that case, they will offer heating and AC repair service in extending the vents to place off such decaying materials. they also might advise you to change where you throw the garbage.
A Full Drain Pan
Another reason why you might notice smelly air from the vents is when the air conditioner’s drain pan is full. The air conditioning unit cools your home by eliminating the humidity and heat from your indoor space, cooling it, and forcing it back in. When the condenser removes the heat, droplets of water are formed. They flow through the condensate drains into the drain pan. Deterioration of the drain pan is normal since it goes through a lot of wear and tear. With constant deterioration, the drain pan will accumulate mold at some point.
Hence, as the air is pushed through the vents, you might notice a moldy or musty smell in your indoor space. Mold affects your health and your family, especially if someone in your household is immunocompromised (toddlers, the sick, and the aged). It can cause wheezing and sneezing and exacerbate asthma conditions in those living with this disease. Fortunately, you can avert this by having regular HVAC servicing by a technician in The Woodlands, TX.
Have you noticed an exceedingly sweet smell in your home? That is a telltale sign that you should have a heating and AC repair. It indicates a refrigerant leak in your heating and cooling system. Older air conditioning units used a popular coolant called R-22 (freon), although its production was banned in the US because of its environmental impact.
However, if your HVAC unit is old, it might still use R22 refrigerant. Call a heating and AC repair technician immediately if you suspect a leak. As mentioned earlier, you could notice the refrigerant because of its sweet chloroform smell. Hence, ensure you call an emergency HVAC repair specialist whenever you notice this. If you still use R22 refrigerant, the professional might recommend replacing the unit.
Calling a Heating and AC Repair Service Provider
To ensure your home is comfortable throughout the year, you should have regular heating and AC maintenance and servicing. Otherwise, the minor issues will worsen, and rather than a heating and AC repair, you will have to replace the entire unit. Call us at Mr. Reliable Heating & Air for professional heating and AC repair service.
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