A mini split system is a fantastic way to get ideal home climate control. But like any system, things can go wrong. There are a lot of components involved, so it’s inevitable that one of them will someday need repair! The key here is to catch the problem early. Prompt repair can make all the difference between a quick and minor fix and big complications, breakdowns, skyrocketing electric bills, and more.
This means that it’s critical to notice right away when something is wrong. But how will you be able to tell? You’re not an HVAC expert. Well, we are—and we can help you. Here are some signs to keep an eye (or an ear) out for. These things indicate that it’s time to get repair for your ductless mini split system.
Noises
Yes, we did mention your ear for a good reason. Just like an automobile, an HVAC system will often make an odd noise when it’s struggling with an issue. What kind of odd noise? Anything other than the humming compressor and whooshing fan is probably a sign that something’s wrong.
A refrigerant leak may bubble or hiss. A hard-starting compressor will come on with a boom or a bang. Components that have loosened from the system’s vibrations may rattle or clatter. Blower fan motor bearings groan when they get worn down. Electrical issues are sometimes noticeable because they make clicking or buzzing sounds. Whatever you hear, don’t ignore it! It’s time for repair.
Smells
Ductless mini split systems have evaporator coils—and thus condensation, and condensate pans and drains to deal with it—in the indoor unit. And where there’s moisture, unpleasant things can grow. Sour, vinegary smells can indicate bacterial growth. A mildew odor means there’s mold in there somewhere. Call in a professional to deal with any drain clogs and get the system clean.
Another odor you may detect smells like chemicals, but also rather sweet. This is the smell of refrigerant, which should be safely enclosed in your coils where you can’t smell it. It must be leaking out somewhere! A technician can detect the leak and patch and refill the system.
Performance
If you’re noticing that your ductless mini split is ineffective, or if you’re happy with the performance in some zones of your home but not in others, it’s time for repairs. It could be trouble with a blower fan or motor, preventing proper circulation.
Short Cycling
Your outdoor unit’s compressor should only be coming on three or four times an hour. If it’s happening much more frequently than that, it’s because of a problem. Worse, the short cycling itself can be the cause of more problems if you don’t get it repaired!
Inefficiency
Your electric bill can also be a useful indicator of an AC problem. Whenever an air conditioner is struggling, it will have to work harder, run more of the time, or start up more frequently. Any of these things will use more energy, so a surprisingly-high electric bill could be pointing to an AC issue. Get a technician to take a look at your Mitsubishi mini split in Evanston, IL!
Contact ServiceMax with any questions about ductless systems.