Most of us have air conditioners that are old and they frequently face leakage problems. Exterior walls and nearby areas of your building can become damaged if your air conditioner leaks.

To prevent your air conditioner from leaking, you have to take care of a few things.

Check whether you drainage line is clear. Sometimes, the drain line is choked which blocks the flow of water. The drain line flows with the help of gravity. This drain line releases the condensation collected in the pan. You should clean the drain line regularly so that your air conditioner does not face leakage problems.
This is why you should regularly clean and maintain your air conditioner. Regular maintenance also helps you to detect any other problems with your air conditioner that can lead to leakage.

If you have a window air conditioner, you should check the drain line and flush it properly as it is piped from outside. You can even use a garden hose for cleaning the drain pipe.

If your air conditioning has a condensation pump instead of a drain pipe then you might have to replace it in the case of a leak.  To replace the condensation pump, you should call an air conditioning technician. If despite all this, your air conditioning unit still leaks then its better to opt for a new air conditioner.