OK – you’ve decided that you don’t want your AC to be maintained on a regular basis – something which we would highly advise you to do. In this case, one of the biggest problems that you’ll encounter is dirty coils. If your air conditioner’s coils are not thoroughly cleaned every year, your home will become increasingly uncomfortable, and your energy bills increasingly higher! This is because of the dirt build-up which can have a big impact on the performance and efficiency of your AC. The pictures below speak for themselves. As dirt inevitably accumulates on the AC coils, it adds a layer on top of the coils that makes it harder to transfer and absorb heat. As a result, your AC system will have a harder time moving heat out of your home, and your system will have to work increasingly harder, and use a lot more energy, to keep your home cool.