1. Why does the original Power Probe shows different directions depending on what side of the fence I'm on?
2. How can I check the lead out cable or an underground cable?
3. What if there is more than one fault on the fence?
4. What about fences with two or more live wires?
5. What about BI-POLAR electric fences?
6. What is the difference between voltage and current?
7. Why does the Power Probe give high readings when its near the energiser?
8. My telephone clicks, does this mean I have a fault on my electric fence?
9. Why do electric fences make the telephone click?

There are two possible reasons.

1) If you have the metal tip on the fence then the fault direction arrows are indicating the voltage polarity not the direction of the fault. Ignore the fault direction arrows while reading voltage. To look for faults place head of the Power Probe over (or under) the live wire.

2) If you are correctly reading current then the level of current flow is probably very small. Do not attempt to find faults unless the Power Probe indicates direction PLUS more than 5 Amps flowing. If there is no (or very little) current flowing then there is no fault on that line.

The new Digital Power Probe does not indicate a fault direction unless there is substantial current flowing.

Checking insulated cables and underground cables.

Sometimes the power from the energiser doesn't even make it to the fence. The lead out wire may be shorting out somewhere between the energiser and the fence connection. Underground wires and wires which run past or through metal shed walls commonly cause problems.

To test for this place the power probe over the live lead from the energiser (try to do this at least 30cm from the energiser itself). Note the current reading (the current can be read through an insulated cable, the voltage cannot). Next take a reading where the lead out connects to the fence. If significantly (5 Amps) more current flows into the wire than comes out then there is a leak in between. The same technique may be used on underground cable by checking for a difference in current flowing into and out of the underground section.

When finding multiple faults, use these rules:

1. Always start at the lead out (close to the energiser)
2. Always follow the wire showing the highest current reading.

After following one direction and finding the fault go back to the lead out wire (or first intersection). Then follow the second fault direction etc.

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