When your air conditioner is clean and operating right, it’s expected you won’t be smelling anything weird. Abnormal air conditioner noises and odd smells are a clue that something is off. If your air conditioner is aging or you haven’t had maintenance scheduled recently, they can be an obvious sign you need professional air conditioning repair in Dresden.

Here are six of the most frequent air conditioner smells and how you can resolve them.

1. Central Air Conditioner Smells Like Chemicals

If your air conditioner smells bad when turned on, particularly a chemical scent, it isn’t a great sign. You might also notice your:

  • Air conditioner smells like paint thinner
  • Home air conditioner smells sweet

These sweet, chemical scents are frequently a clue that your air conditioner is suffering from a refrigerant leak. Your system needs this gas to transfer heat through copper coils, which can crack over time.

Four Clues You Are Experiencing a Refrigerant Leak

Besides the odd smell, here are four other hints that you have a refrigerant leak.

  1. Bubbling or hissing sounds when your air conditioner is cooling.
  2. Ice on refrigerant lines or the evaporator coil.
  3. Difficulty keeping your house cold or achieving your programmed temperature.
  4. High electrical expenses.

How You Can Take Care of It

A refrigerant leak calls for professional assistance from a heating and cooling company like McFadden Heating & Cooling. Your cooling specialist will locate and fix the leak before recharging your AC with refrigerant.

Repairing a refrigerant leak typically costs between $225 and $1,600, according to nationwide averages assembled by HomeAdvisor. Your precise cost will depend on the location and severity of the leak, as well as how long it needs to solve.

If your air conditioner was installed prior to 2010, there’s a high probability it uses R-22 or Freon refrigerant. This refrigerant is no longer being made as a result of its harmful effects on the ozone layer. Due to this, repairs can be very expensive so it may be best to do air conditioning installation in this situation.

2. Air Conditioner Smells Like Gas

If your air conditioner smells like rotten eggs, there’s likely nothing wrong with it. But there’s a high chance you have a natural gas leak in your home. Natural gas has a sulfur-like additive to warn you when there’s a leak, because the gas can be fatal in large amounts.

How You Can Repair It

If you notice a sulfur or rotten egg odor, we suggest:

  • Turning off your gas supply.
  • Opening windows.
  • Leaving your home right away.
  • Getting in touch with your gas company immediately.

3. Air Conditioner Smells Musty

People who reach us about this situation usually mention their air conditioner smells like feet, dirty socks or a locker room when it’s running. Also called dirty sock syndrome, this smell is often linked to a filthy evaporator coil that has mold, mildew and bacteria buildup. Excess water can also make your home air conditioner smell bad. Dirty sock syndrome is most common in locations where you use heating at night and during the morning before switching to cooling later on.

How to Fix It

The best method for preventing dirty sock syndrome is to regularly replace your air filter and schedule yearly air conditioning maintenance with McFadden Heating & Cooling. We’ll keep the evaporator coil clean and the drainage system unblocked, because standing water can also create noxious odors.

4. Air Conditioner Smells Like Vinegar

If you are living with air conditioner mildew smell or a pungent, vinegar-like odor, it could be caused by several issues, such as:

  • A dirty filter
  • Excess condensation
  • Plugged condensate pan or drain line
  • Moldy air conditioner or ductwork

How to Resolve It

Check your filter first. If you haven’t replaced it within the last three months and can’t see light through it, we recommend replacing it. If that doesn’t solve the problem, call McFadden Heating & Cooling at 1-866-781-0111.

5. Air Conditioner Smells Like Burning Plastic

If you’re noticing an air conditioner burning smell or that your air conditioner smells like fish, there could be a number of things wrong. These include:

  • Broken capacitator that’s overheating the motor.
  • Motor that requires lubrication.
  • Broken fan belt.
  • Electrical trouble.

Electrical issues should be inspected immediately to prevent a fire. If you notice burning plastic when your air conditioner is running, turn it off and call us at 1-866-781-0111 right away.

6. Air Conditioner Smells Like Cat Pee

An overpowering ammonia odor means there may be mold flourishing within your air conditioner or ductwork. The smell isn’t the mold itself, but the mycotoxins that mold makes.

How to Fix It

Mycotoxins are hazardous to your health. That’s why you should have a pro like McFadden Heating & Cooling look at your air conditioner and ductwork and clean it when needed.

Our Professionals Can Get Rid of Strange Air Conditioner Smells Rapidly

You deserve to be comfortable in your residence and shouldn’t have an air conditioner that smells bad. When you need relief from your smelly air conditioner, contact us at 1-866-781-0111. We’ll figure out the issue quickly and resolve it at a fair price.