Do air conditioners really need servicing? Does it affect their warranties?
I have a couple of air conditioners, Daikin (5 years old) and Fujitsu (3 years old). I clean the filters regularly, and I give the outdoor units a good hose occasionally to prevent buildup. This is exactly what the service guy did the couple of times I've had them out. If they oiled, greased, took it apart to clean it, that kind of thing, sure it might be worth it, but I can hose it and clean the internal filters myself. I'm wondering if it's just a way for the installers to generate revenue.