Whenever we talk about why “do-it-yourself” isn’t an option when it comes to air conditioning repair, we mention just how complicated the modern AC is. It’s not only an intricate refrigerant-based system that requires special licensing to handle, it’s also a complex electrical device with motors, wires, a control board, and numerous other electrical intricacies. This is why an HVAC repair technician must have years of training and pass special licensing tests.
Today we’re going to take a look at two important parts of the electrical system inside an AC: the capacitors and the contactors. These are temporary parts that eventually wear down to the point that they’ll need a professional to replace them. If you schedule annual maintenance for your air conditioning system, technicians will catch early on when these parts need to be replaced. But even with this level of care, you may have an air conditioning system that suddenly won’t work because of failed capacitors or contactors.