When your air conditioner is spotless and running right, it’s expected you won’t be smelling anything odd. Abnormal air conditioner noises and strange smells are a hint that something is off. If your air conditioner is old or you haven’t had service done lately, they can be an obvious sign you need professional air conditioning repair in Pacheco.

Here are six of the most frequent 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, particularly a chemical odor, it isn’t a good sign. You might also report your:

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

These sweet, chemical scents are often a hint that your air conditioner has a refrigerant leak. Your system needs this gas to move heat through copper coils, which can wear out over time.

Four Hints You Are Dealing with a Refrigerant Leak

Aside from the odd smell, here are four other clues that you are experiencing a refrigerant leak.

  1. Bubbling or hissing sounds when your air conditioner is operating.
  2. Ice on refrigerant lines or the evaporator coil.
  3. Trouble keeping your house comfortable or reaching your desired temperature.
  4. High electrical costs.

How You Can Fix It

A refrigerant leak calls for experienced repairs from a heating and cooling company like Clean Air HVAC. Your cooling technician will find and fix the leak before recharging your system with refrigerant.

Resolving a refrigerant leak usually costs between $225 and $1,600, based on nationwide averages compiled by HomeAdvisor. Your exact cost will depend on the location and severity of the leak, as well as how much time it takes to repair.

If your air conditioner was installed before 2010, it’s likely it uses R-22 or Freon refrigerant. This refrigerant is no longer being manufactured because of its harmful effects on the ozone layer. Due to this, repairs can be extremely expensive so it may be wisest to consider 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 significant likelihood 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 big amounts.

How You Can Repair It

If you smell a sulfur or rotten egg odor, we advise:

  • Shutting off your gas supply.
  • Opening windows.
  • Leaving your home right away.
  • Calling your gas company without delay.

3. Air Conditioner Smells Musty

Homeowners who contact us to report this problem usually say their air conditioner smells like feet, dirty socks or a locker room when it’s running. Also called dirty sock syndrome, this smell is frequently linked to a dirty 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 often seen in locations where you use heating at night and during the morning before transitioning to cooling later in the day.

How to Repair It

The best method for preventing dirty sock syndrome is to routinely replace your air filter and schedule regular air conditioning maintenance with Clean Air HVAC. We’ll keep the evaporator coil clean and the drainage system unclogged, since standing water can also lead to noxious odors.

4. Air Conditioner Smells Like Vinegar

If you are living with air conditioner mildew smell or a strong, vinegar-like odor, it might be the result of several situations, such as:

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

How to Solve It

Inspect your filter first. If you haven’t changed it within the last three months and can’t see light through it, we recommend replacing it. If that doesn’t resolve the issue, contact Clean Air HVAC at 925-233-6238.

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 several things wrong. These involve:

  • Broken capacitator that’s overheating the motor.
  • Motor that should have lubrication.
  • Broken fan belt.
  • Electrical problem.

Electrical problems should be examined immediately to stop a fire. If you detect burning plastic when your air conditioner is running, turn it off and contact us at 925-233-6238 immediately.

6. Air Conditioner Smells Like Cat Pee

A powerful ammonia odor means there could be mold growing in your air conditioner or ductwork. The smell isn’t the mold itself, but the mycotoxins that mold produces.

How to Solve It

Mycotoxins are hazardous to your health. That’s why we recommend having a pro like Clean Air HVAC check your air conditioner and ductwork and clean it when necessary.

Our Professionals Can Get Rid of Odd Air Conditioner Smells Fast

You deserve to be comfy in your home and shouldn’t have an air conditioner that smells bad. When you need relief from your smelly air conditioner, reach us at 925-233-6238. We’ll diagnose the trouble quickly and take care of it at a reasonable.