PetSafe Fence Training Tips -
If your dog is starting to test his Radio Fence boundaries or running through the system, the following retraining options have proven to be effective:
Tie-out Training - First, make sure the probes are making good contact with the skin, without good contact with the skin, the dog will not feel the shock. Also, make sure the battery is at full strength. Once a battery loses half its voltage, the receiver will no longer shock properly. If the receiver is working properly, try the following training suggestion.
Try using a tie-out that has enough rope to allow your dog to get the shock area but no farther. Once your dog reaches the shock area, there is no choice but to come back into the yard. Let him out on the tie out for the next several days. At some point a distraction will tempt him to leave the yard and he will get a shock and have no choice but to return to the yard. This should get your dog trained to the boundary even when distractions are present.
Field Fluctuation - During the training process, make your boundary wider than your normal setting. Be sure to always pull your dog back as soon as his collar begins to beep (regardless of how close he is to your "normal" boundary). This will help your dog understand that the "beep" means turn around and come back towards the house. NOTE: Do not make the boundary narrower than your normal setting.