Mini-split smells are obvious, if unpleasant ways to recognize that there’s something wrong with your HVAC system. Heating and cooling equipment shouldn’t smell when functioning normally. When you notice a bad smell coming from your mini-split, contact a trusted HVAC technician when you can.
All Solutions Heating & Cooling can provide the prompt, effective mini-split repair in you deserve. Our technicians are familiar with all the mini-split AC smells you may encounter. To help you protect your HVAC system, we’d like to share some of the most common smells and what they could mean.
1. Musty or Moldy Smell
A mini-split AC musty smell is most often a telltale sign of mold growth. You may describe it as stale or similar to dirty socks. Mold and mildew are problematic for mini-split systems, and professional cleaning is typically required. Spores could flow through your entire home if components like the air handler are affected.
In some cases, your mini-split smells like urine instead. This is a result of mycotoxins created by bacterial growth. If you live with someone with allergies or respiratory problems, these mycotoxins can worsen symptoms. Moving quickly when your mini-split smells moldy can spare you a lot of trouble.
2. Fishy or Rotten Smell
When your mini-split smells like fish, the most likely culprit is a dead animal. Small particles like bacteria will slowly make their way into the system’s air handler from the outdoor unit. Compared to central HVAC systems, your mini-split’s lack of ductwork lowers your risk. Once the system is contaminated, however, it will have more time to build before it’s noticeable.
This foul odor can be very difficult to get out of your HVAC system, so a thorough cleaning is your best option. Your indoor air quality could suffer otherwise.
3. Chemical or Vinegar Smell
There are several problems that can result in a mini-split chemical smell. To ensure your technician quickly locates the source, it’s best to be as specific as you can. Many homeowners desc