Most other problems are a little more complicated: A window air conditioner plugs into a receptacle, so if the unit isn’t getting power, check the breaker. “The most common cause of an air ...

If your room air conditioner is beyond repair, you can find one that did well in our tests for a little over $200 for a small ...

Low coolant levels can cause the evaporator coils to freeze. You may notice frost or ice forming on the coils or other parts ...