When your air conditioner is fresh and working correctly, it’s not normal to be smelling anything weird. Abnormal air conditioner noises and strange smells are a clue that something is out of whack. If your air conditioner is getting older or you haven’t had service completed within the last year, they can be a clear sign you need pro air conditioning repair in Mission Viejo.

Here are six of the most common air conditioner smells and how you can repair them.

1. Central Air Conditioner Smells Like Chemicals

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

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

These sweet, chemical smells are regularly a hint that your air conditioner is suffering from a refrigerant leak. Your system needs this gas to shift heat through copper coils, which can crack over time.

Four Clues You Are Dealing with a Refrigerant Leak

Besides the strange smell, here are four other clues that you are experiencing a refrigerant leak.

  1. Bubbling or hissing sounds when your air conditioner is cooling.
  2. Frost on refrigerant lines or the evaporator coil.
  3. Difficulty keeping your house comfortable or having your set temperature.
  4. Increasing utility expenses.

How You Can Fix It

A refrigerant leak needs professional assistance from a heating and cooling company like 1st Choice Heating & Air Conditioning. Your cooling specialist will pinpoint and mend the leak before recharging your AC with refrigerant.

Fixing a refrigerant leak often costs between $225 and $1,600, per nationwide averages assembled by HomeAdvisor. Your precise cost will depend on the location and severity of the leak, as well as how many hours it requires to repair.

If your air conditioner was installed earlier than 2010, there’s a high probability it runs on R-22 or Freon refrigerant. This refrigerant is no longer being manufactured due to its damaging effects on the ozone layer. As a result, repairs can be extremely expensive so it may be smartest to consider air conditioning installation in this circumstance.

2. Air Conditioner Smells Like Gas

If your air conditioner smells like rotten eggs, there’s possibly nothing wrong with it. But there’s a high probability you have a natural gas leak in your home. Natural gas has a sulfur-like additive to alert you when there’s a leak, as the gas can be toxic in heavy concentrations.

How You Can Solve It

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

  • Turning off your gas supply.
  • Opening windows.
  • Evacuating your home as soon as possible.
  • Contacting your gas company now.

3. Air Conditioner Smells Musty

Homeowners who call us regarding this situation frequently say their air conditioner smells like feet, dirty socks or a locker room when it’s on. Also referred to as dirty sock syndrome, this smell is frequently linked to a filthy evaporator coil that has mold, mildew and bacteria buildup. Condensation can also make your home air conditioner smell bad. Dirty sock syndrome is most often seen in climates where you need heating at night and during the morning before switching to cooling during the afternoon.

How to Repair It

The best method for preventing dirty sock syndrome is to regularly replace your air filter and schedule regular air conditioning maintenance with 1st Choice Heating & Air Conditioning. We’ll keep the evaporator coil clean and the drainage system unblocked, since standing water can also produce unpleasant odors.

4. Air Conditioner Smells Like Vinegar

If you are dealing with air conditioner mildew smell or a strong, vinegar-like odor, it can be caused by several problems, including:

  • A dirty filter
  • Extra condensation
  • Blocked condensate pan or drain line
  • Moldy air conditioner or ductwork

How to Solve It

Examine your filter first. If you haven’t replaced it within the last three months and can’t see light through it, it’s time to replace it. If that doesn’t fix the issue, contact 1st Choice Heating & Air Conditioning at 949-204-0859.

5. Air Conditioner Smells Like Burning Plastic

If you’re dealing with an air conditioner burning smell or that your air conditioner smells like fish, there could be several things wrong. These entail:

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

Electrical problems should be checked immediately to prevent a fire. If you notice burning plastic when your air conditioner is operating, shut it off and reach us at 949-204-0859 without delay.

6. Air Conditioner Smells Like Cat Pee

A strong ammonia odor means there might be mold flourishing within your air conditioner or ductwork. The smell isn’t the mold itself, but the mycotoxins that mold produces.

How to Repair It

Mycotoxins are hazardous to your well-being. That’s why we recommend having a pro like 1st Choice Heating & Air Conditioning examine your air conditioner and ductwork and clean it when necessary.

Our Pros Can Take Care of Odd Air Conditioner Smells Quickly

You deserve to be comfy in your house and shouldn’t have an air conditioner that smells bad. When you need relief from your smelly air conditioner, reach us at 949-204-0859. We’ll diagnose the issue quickly and resolve it at a competitive.