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Oder doesn't seem to be electrical smell or you would know a house fire may occur. We normally know the electrical smell I'm worrying you about, and if it is that, do not use it and call a professional! It may be mildew in the unit or in the ductwork. Mildew is quit common, mold is not. No one LEGALLY can tell you it's mold unleased certified by you state or province. Mildew can grow anywhere we have a warm surface that comes in contact with a cold surface. This means uninsulated ductwork, or aged ductwork. The unit itself can also produce some mildew due to lack of maintenance. And also, water can get inside the duct for many reasons if you have cooling. If water is trapped it can produce "growing" stuff and a smell. Varmints can also cause this, either by dying inside the unit/duct or by leaving their droppings, to say it nicely. Temporary fix is what we call in Texas a Odor Cake. These are sold at the HVAC parts houses. Come in a little Tupperware style cup, and are mainly used for fire, smoke, and mildew damage to a structure. You just set em inside the airflow and the help, but don't solve the issue. If mildew is present inside the unit, have a tech out to inspect/clean. And a ultraviolet light may be needed to help control the growth. Internet U.V. Light for HVAC to study on them. Hope this helps!
Hello, the coils can be cleaned with coil cleaner that is sold at any heating and cooling store, usually in a aerosol can. The inside of the AC can be cleaned with soap and water. They also sell a cleaner for mold at heating and cooling stores that can be used to get rid of the mold.
Mold can make you very ill depending on which type of mold it is. Mold forms in dark, wet environments and can be hard to get rid of. Your a/c unit needs taken apart and each piece that has mold will need to be cleaned thoroughly and carefully before re-installation.
The only thing that is vaguely related to fuel (which it's not) in your AC unit is R14 refrigerant gas. Under most circumstances, it's described as a sort of sweet smell. If that's what your smelling, it indicates the it's leaking either fro the compressor or the cooling coils. In which case, the unit will stop cooling pretty quickly.
With that said, it mat be a case of the odor is from another outside source and the unit is picking up the odor and circulating through the AC unit. Also, the air intake filter may need to be removed and cleaned and/or replaced. When you remove the filter, it may give you access to view the condensation pan and the cooling cool and heat disbursement (cooling) fins, which all may need cleaning.
If the condensation pan shows signs of mold or mildew. you can clean it with a bleach and water solution and then rinse it thoroughly. For the coils, use warm water and dish washing detergent. Use a vacuum with a hose and brush attachment to clean the cooling fins.
Check outside an take note of any fuel type odors, that the unit may be picking up.
Hope this helped you troubleshoot and solve the problem. Please let me know. Thanks.
Make sure it isn't toxic mold. Neptunes are prone to mold. Maybe try to get a sample of the water in it when you run to take and have tested. Also, look closely at the gaskets and brush around the drum, they may have mold on them, like mine do.
does it smell like literally , dirty socks?if so it is dirty sock syndrome, a plague of heat pumps for years. if it smells like an electrical melting or burning of wires then time to call a pro.it could be a weak capacitor or a weak fan motor. if it is dirty sock syndrome then its the microbes that thrive when temps are middle temps and reproduce when temps are hot and cold in intermittent days. hot one day and cold the next equals call for cool then call for heat and hot steam from heated coils cause s bacteria to grow and microbes to spread across coil. when you switch back it causes the smell.if the coil is clean you can spend a chunk of money on sanitizers but best bet is to run it cool for hot weather and hot for cool weather. the transitional periods are what create the smell. avoid semi cool and semi hot periods. this condition is common to acs from all brands . lots of stuff on the internet about dirty sock syndrome
I have a maytag ac unit that kept smelling moldy. We tried spraying with antifungal, only helped for a short time. I took the unit (ac unit slides out of window case) outside and carefully removed screws only to discover the fan was covered in mold!!!! Oh my what a horrible discovery! I washed the fan blades with bleach and water mix. I completely and carefully washed and wiped down the air conditioner careful around the control box. Then I let the unit sit outside in the sun untill completel dry. Good bye mold and fresh clean cool ac!! I will do this each year now that I saw that ugly mold!! That is definetly a health hazard! I would reccommend you either thouroughly clean your unit or pay someone to do it or get a new unit right away!! Don't use that moldy unit another day!! Good Luck!