Some portions of windows air conditioner units are simple to repair, but the compact design of window air conditioners might require users to disassemble almost all of a unit to reach certain components, explains HowStuffWorks. It is important to have a user's manual before performing repairs.
Air conditioner window units typically have at least two capacitors that can cause shocks even after the unit is unplugged; people performing repairs should follow the user manual instructions to discharge the capacitors before performing repairs. Some parts, such as fuses and thermostats, are easy to remove to install new parts. Large components, such as blowers and compressors, can be hard to remove and might even be soldered into place. If a component not designed to be replaced fails, expert help is probably needed.