Why Is Your Ductless AC Failing?

1. Poor Installation

Unlike central air conditioning units, ductless mini splits don't require ducts. Homeowners often view this as an avenue to test their DIY skills only to experience problems in the future. You need the correct setup to get the cost efficiency and reliability that ductless mini splits are famed for. If not, you will be handling issues such as water leaks, electrical problems, impaired performance, and high-energy consumption. 

2. Oversized Unit 

Bigger isn't always better. Oversized mini-split units can quickly become problematic due to issues such as short cycling. This could be why your air conditioning unit is stuck in a start-up cycle loop. 

You can resolve short cycling by changing the filters regularly. However, when it's caused by oversizing, a cooling system overhaul is necessary. Replacing the cooling system should restore it to full efficiency. 

3. Refrigerant Leak

Ideally, your ductless mini-split should maintain optimal levels of refrigerant. If it drops significantly, your unit could have a refrigerant leak. AC units retain their refrigerant levels over time, unlike cars that need oil replenishments over time. 

If you detect a reduction in cooling power, it could be associated with a refrigerant leak. The refrigerant absorbs heat before releasing it outside. Therefore, if it's taking longer to cool your home, you are likely dealing with a refrigerant issue such as a leak. 

Similarly, it could be a leak if you hear hissing or gurgling sounds coming from your unit. Your mini-split likely has cracks or holes, and the refrigerant is leaking through at high pressure. 

How do you address a refrigerant leak? Don't refill the refrigerant to save costs. You will have recurring issues that are avoidable. Instead, contact professionals to address the cause, repair, or replace the refrigerant coil. 

4. Compressor Distress 

The compressor is the heat of your AC. If it halts, your AC stops working too. It's a critical piece that you shouldn't ignore. However, compressor distress doesn't necessitate replacement. These parts are expensive to replace; thus, don't rush to get a new one without understanding why it failed and if you can revive it. 

Replacing the compressor without diagnosing the issue would be futile. The new compressor may fail again if you don't address the cause of the failure. 

5. Clogged Condensate Line 

Water is a byproduct of your ductless mini-split extracting heat from the air. The amount of water is too little to turn heads, so it's easy to overlook this problem. However, a clogged condensate line can lead to water accumulation that damages any metallic parts in your ductless mini-split. 

Water causes rust, which reduces the lifespan of your air conditioning system. Ultimately, you will replace your ductless mini-split before the expected date. 

A clogged condensate line can also accumulate water leading to drain pan overflow. If the overflowing water spills, it can damage your electronics or drywall. It can also contribute to mold growth; thus, causing health problems to your family. 

If your ductless mini-split has a clogged condensate line, investigate the cause immediately. In most cases, these clogs are associated with dirt, pet hair, or dust. You can dislodge the clog using a thin jet of water or stick. Alternatively, regular AC maintenance should prevent these clogs. 

At Northwest Heating & Air Conditioning, you can expect expert air conditioning system diagnosis and remedies. We have managed to remain in business since 1963 by offering quality workmanship, fair prices, financing plans, and 100% customer satisfaction. Contact us today for a free estimate.