How Do I Clean The Mold Inside Of My Air Conditioner

Mold in Air Conditioners

Mold can grow in many areas in your home, particularly where information technology is dark and boiling. So it should come as no surprise that air conditioners are one of the places where mold can be found. Unfortunately, Air conditioning units represent a particularly risky place for mold to grow, since they push air through the house.

This means that a moldy air conditioner volition actually accident microscopic mold spores into the air you breathe, spreading the spores throughout the rest of your habitation. Since mold presents multiple wellness risks, information technology'southward important to prevent mold from developing in your air conditioner, and to eradicate information technology if it does appear.

What are sings of mold in air conditioners?

There are a few signs to lookout man for if you suspect mold in your air conditioner:

Musty smell. Mold spores give off a distinct musty odour. If you have a central AC unit, you might notice a musty smell throughout the house with no discernable source or visible signs of mold. If y'all have ane or more window air conditioners, yous might notice this smell in the room where the unit is located. A musty smell coming from an air vent when the Air-conditioning is running is a clear sign of mold in your air conditioner.
Health symptoms when Air conditioning goes on. Mold tin cause a diversity of negative reactions, including allergic reactions and various respiratory bug. If you or someone in your family unit starts showing these symptoms only when the Air conditioning is running, mold may be the culprit.
Visible signs. Of course, depending on the location of your Ac unit, you lot may be able to requite information technology a visual inspection, along with the air vents if you have cardinal air conditioning. Wait for the familiar patchy spots of mold, sometimes fuzzy and often black or green-black. Merely keep in mind that mold spores are microscopic and the source of them may exist subconscious from view. So even if you lot tin't run into any mold, it may still be lurking out of sight.
Professional person inspection. If y'all suspect mold in your air conditioner, the best mode to be certain is to bring in a professional mold inspector. They will be able to determine if there is mold in your AC unit, in the ventilation organisation, and other parts of your home.

Causes of mold growth in ACs

Mold is a blazon of mucus. Like all living organisms, fungi require three things to grow: oxygen, water and organic affair. Since air conditioners circulate air and the cooling coils tend to create condensation, the first two criteria for mold growth are jump to be present in an air conditioner.

Air conditioners and ductwork also provide the dark spaces where mold can thrive. Add some organic fabric—which can just be dust and other droppings—and you have all the conditions for mold to grow.

What are types of ACs decumbent to mold growth?

Your house may be cooled by one of various types of air conditioners:

Window AC units
Freestanding, portable Air conditioning units
Wall-mounted stand-alone units
Central air conditioners

Whatsoever air conditioner may develop mold, simply each has slightly dissimilar considerations for mold detection and eradication.

Mold in window AC units. AC units fitted to a window tin often be adequately hands inspected and removed. Depending on your level of skill and confidence, you might feel up to attending to mold in your window unit on your own—though care and safety equipment should always exist used when handling household mold.
Mold in free-standing Air-conditioning units. Complimentary-standing AC units are becoming increasingly popular. Similar window-mounted units, they use a window opening to vent air and humidity. Since these units are often intended to be moved around easily, yous may well feel able to handle and potentially dispose of a moldy unit without professional help. Even so, employ caution if you suspect mold in a gratuitous-standing unit of measurement.
Mold in wall-mounted Air conditioning units. Some AC units are installed directly into a wall. Like window air conditioners, these units serve just a single room and are not connected to a house'south ductwork. This narrows the focus of inspection, cleaning or replacement. However, as permanently installed fixtures, they may be harder to deal with than free-standing or window-based Ac units.
Mold in key air conditioners. Central air conditioners represent a greater claiming if mold is suspected. They are typically much bigger pieces of equipment and might be installed at an inaccessible spot. An even bigger problem, though, is that they are attached to a ventilation organization that is liable to likewise develop mold. Because primal air systems are so much bigger and more complex than smaller units, replacement is rarely a viable selection. For these units, professional intendance is the recommended way to remediate a mold infestation.

What type of mold grows in air conditioners?

There are thousands of types of mold. Of these, the most common types of mold plant in air conditioners and ductwork include:

Aspergillus: a genus of mold fungus decumbent to triggering allergic reactions and affliction in people with weak immune systems.
Cladosporium: a very common genus of mold with a green to black appearance, oftentimes relatively innocuous though it can yet trigger allergic reactions and worsen asthma.
Stachybotrys chartarum: known as black mold or toxic mold, Stachybotrys chartarum is a particularly dangerous species of mold that produces poisonous mycotoxins.

Black mold in AC

While many species of mold have in common a tendency to trigger allergic reactions and cause respiratory problems, black mold is a particular gamble with Air conditioning units. Black mold produces mycotoxins that are poisonous to humans. Considering Ac units broadcast air, they volition accident blackness mold spores into the air you breathe and throughout the house. These spores can then take root in many parts of the house: inside walls, in a higher place ceilings, under carpets, etc. For these reasons, it is extremely important to detect and eradicate a black mold infestation as before long equally possible.

What should I do if I notice mold in air conditioner?

Replace. In many cases, particularly for smaller, less expensive window and free-continuing units, safe disposal and replacement may be the best option. If there is significant build-up of mold in an Air-conditioning unit of measurement, it may price less to replace information technology than to remove the mold from it. However, care should notwithstanding exist taken when handling the old unit of measurement: use goggles, face mask and gloves to avert exposure to mold when inspecting or removing the old unit of measurement.
Hire an practiced. Of course, it's a shame to throw out a functional air conditioner, and it can be both safer and more economic to hire an skillful to deal with it. In the example of well-nigh central air conditioners, this will be the just viable solution to eradicate mold not only from the Ac unit but from all associated vents and ductwork.
Born wall units might be tempting to tackle yourself, but remember: even with no ductwork, the fact that it's built in means the mold will have to be dealt with on sight. You don't desire to transfer the mold in your wall unit to the rest of the house. Better to hire an expert than to put your home at risk.
Self-clean. If y'all have a pocket-size, removable unit not connected to a ventilation system, information technology may exist possible to clean it yourself. If you are contemplating this, start inspect the unit using goggles, a mask and gloves to avoid contagion. Open and wait within the unit: Is the mold limited to less than a third of the unit? Does the unit of measurement'south blueprint let you see into it enough to assess the presence or absence of mold? Is information technology express to parts of the air conditioner you'll be able to admission and clean? If the answer is "no" to any of these questions, do non attempt to clean information technology yourself.

How to remove mold from air conditioner?

Nosotros don't recommend that homeowners effort to clean a central air unit or ventilation (unless they are an experienced mold technician). If, on an inspection of a pocket-size self-contained unit of measurement, you have decided to tackle it yourself, here's what you'll need to do:

Clothing goggles, a confront mask and gloves to avoid exposure
Motion the unit to a space where you can clean it without cross-contaminating your house (e.g. driveway)
Open the unit and remove the filter
If the filter is disposable, throw it out
If the filter is not disposable:
- remove all debris and visible mold
- fully submerge the filter in a mix of ane function bleach to 10 parts water (100ml per 50, or 1 cup per gallon)
- allow soak for at least 10 minutes
- rinse
- air dry
Employ a wet/dry vac to remove all debris from the interior of the unit of measurement
Deep clean all affected surfaces using a mixture of 1 parts bleach to ten parts h2o, adding a spoonful of detergent for actress penetration.
Allow at to the lowest degree 10 minutes for the bleach to kill off any final remnants of mold
Hose or otherwise rinse off the unit of measurement, but avoid soaking the electrical components
Permit to dry
Reinstall the filter, reassemble and reinstall

If you're intimidated by the to a higher place piece of work, retrieve: hiring a mold removal skillful is always a safe and sure-burn down way of getting mold eradicated.

How to preclude mold in air conditioner?

Fortunately, there are a few steps yous tin can take to prevent mold from developing in your air conditioner:

Reduce wet. The easiest way to avoid moisture build-up in an AC unit is back when you purchase information technology. Wait for an Air-conditioning unit with humidity command. Many modern units vent water vapour with air. If yous have a unit that is designed to collect water in a reservoir, empty it regularly.
Avert organic debris. In add-on to h2o and air, mold needs organic thing to breed. Clean or replace your air conditioner's filter regularly, and vacuum the interior to articulate out any grit and debris. Don't give mold any food to live on!
Continue unit running while on holiday. Mold tends to build upwards when the air conditioner is not running and the air is still. Keep your unit of measurement running, even when on vacation. To reduce energy consumption, you tin can gear up the target temperature higher so it runs less oft, but don't shut information technology off altogether.

Unfortunately, air conditioners represent a particular problem surface area for mold, since they push the air and mold spores through the house and into the air y'all breathe. The risk of black mold in item makes information technology of import to be vigilant nearly mold in air conditioners and nip problems in the bud.

It may experience intimidating, but don't feel discouraged. Knowledge is power, and knowing to go along an eye out for mold in your air conditioner will help you proceed your home healthy and happy.

Published: May 15, 2022 Updated: February 18, 2022