Invisible Fence® Brand system has power and the indicator for the loop is on with no alarm sounding but I don't have any signal at the perimeter. What is wrong?
All brands of systems have an indicator light which tells you if your system loop shows continuity (doesn't have a break in the line). This could be a simple light that goes out if there is a break or it could include a number of flashing lights and beeping or other alarms. It's easy to tell when this happens simply by checking those indicators. But what happens if all the indicators are functioning and from addressing the transmitter unit it appears you should have a functioning system but the collar receiver fails to activate when placed in the perimeter zone as it would normally. Here is the protocol we use professionally when diagnosing this problem.
Always first check your field width adjustment to make sure it has not been turned down before proceeding.
Once completed this will leave only three more possibilities where the problem could be.
The most common problem would be that you have a wire break but something is allowing enough continuity to occur in your perimeter loop as to not activate the alarm. This could be a bad splice, partial break, or it could be a regular break that is in wet or moist soil which is providing enough continuity to fool the alarm. I've seen this occur with the wire broken and separated several feet laying on wet ground. Our DFNA 1016 locator (Invisible Fence® Brand system)will find this problem with ease.
The other two possibilities are extremely uncommon but do occur so I will mention them.
One could be your transmitter unit has shorted or malfunction and is only producing a very limited signal strength.
Second could be a short between the two wires in your twisted or parallel pair which generally lies between your transmitter and your perimeter. If these two wire get cut or exposed and the conductors contact each other it will short your signal essentially stopping the signal from going beyond that point.
Finally a true RF-null fault locator that is cost effective
Locating a Break
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