April 13, 2016

Gallagher Solar Electric Fence Charger | Troubleshooting and Fence Testing

Is the Gallagher S17 SOLAR Electric Fence Charger Energizer a good one? First off, you have a really solid fencing unit in the Gallagher S17, there's whole bunch of them out there shocking fence. It sounds like you have everything hooked up and right, the only thing I wonder is what are you using to test the electric fence or the fencer by itself? I would use a digital electric fence tester like a Gallagher DVM3 tester.

If you're just testing it by touching the fence wire, you may not feel a hard shock from doing that depending what you're wearing for shoes. If you have a thick rubber or leather sole on your shoe/boots, then you won't be grounded really well. An animal is standing barefoot, so that's why they get a good shock from it. If you're tough and willing to try this, just brace yourself in case everything is working. Go out to the fence, squat down to a knee, and put the back of your hand on the fence wire. If everything is working and feel a pretty good shock from it, then all is working and it was just your shoes/boots. Don't worry too much about the shock from a Gallagher S17, it's not a real hard hitting fencer, but you'll definitely feel it.

Try this first and let me know if you have any further questions. I don't like getting shock by anything big or small, so I'd look at getting the Gallagher DVM3 digital fence tester.



The S17 has a little red light that flashes about every second or two, that's when it is delivering the shock. It should have a faint tick/click sound when the red light flashes.At night time the unit will flash a little slower around 3 to 5 seconds. It's the night save feature built into the S17 to save on battery. It runs off the Solar panel during the day if the battery is fully charged and kicks the battery in at night or a pretty cloudy day. The night save feature can be disabled, but it would have to be sent here to us because I would have to rework the board a little ($12). It would allow the S17 to flash every second or two at night just as it does during the day.

2016/10/01

Vaneeta said:

I have an older Gallager solar S17 but it does not seem to have enough shock to stop my horse. Is there a battery in there that needs to be changed.?

2017/03/20

clay poynor said:

have two s-17. neither one works. have installed new batteries on both, but no pulse! is there something else i can change out myself, as far as to replace parts to work. regards,cp. 940-393-3355.

2017/06/03

Bruce Ketchum said:

I have a S20 and 4 s17 fencers that all worked last fall when I put them away in our heated shop. This spring the s20 and 2 s17 would only put out 1 -2 kw when the sun was out after sitting in the sun for 3 days. I ordered new batterys for them and still have low output. Is there other components that are replaceable that would cause this problem. How can you test for what may be wrong?

2017/07/28

Paul Wright said:

When we turn on our Solar s17 unit it only flashes once and clicks once because we don’t have instruction book any more can you tell us what this means thanks Paul Wright

2017/07/28

Paul Wright said:

When we turn on our Solar s17 unit it only flashes once and clicks once because we don’t have instruction book any more can you tell us what this means thanks Paul Wright

2019/07/08

James Dodson said:

light flash don’t hear a click use a zareba tester this is a new tester. have always used this kind of tester and it worked on the s17 solar

2021/01/03

Roger Thompson said:

My s 17 lights up then it clicks but nothing is coming out of the charge terminals I grabed both terminals on the charger it should of shocked the shit out of me rubber shoes or not the capacitor should of discharger nothing

2025/02/05

Chris Wright said:

I have replaced my battery and it worked great for a day or two, now it seems the battery is not getting a charge. What can I do to see if I. Is charging? Thanks for the help!

2025/02/05

Elizabeth said:

Hello, I have a Gallagher S20 which has worked well for a couple of years. In spite of plenty of sunshine it is no longer showing a green light when switched on. It is now flashing red twice before switching off. Would you be able to diagnose the problem please. Thank you.

2025/02/05

Andrew Shaw said:

Our S20 unit which is only around two and a bit years old is no longer putting out a very strong pulse. Certainly not enough to worry the calves which is the whole point of having the unit. Any suggestions, change battery Etc?

2025/02/05

Robert Braswell said:

Battery went bad in my S17 so i put a new battery in and let is sit in the sun for four days . On the fifth day hooked it up and turned it on and the light flashed once then nothing. Checked battery and it was fully charged . Need help please Rob

2025/02/05

Shan said:

S20 Two red flashes before turning off. Can anyone assist?

2025/02/05

charles said:

I have a S40. The light flashes green but there seems to be no charge going through it.

2025/02/05

Philip said:

Should I turn off the charger during the day? Aiming to keep out possums at night.

2025/02/05

David Zuckerman said:

I have a Gallagher fence charger and it has been great. But…my remote tester and toggle hand tool (Remote v2) now only works to indicate the charge and grounding directions, it will no longer remotely turn off (or on) the main charger back at the barn. Is this an issue with low battery? An issue with the remote hand held device? Or an issue with the main charger (base) in the barn? And…what might the remedy be? The system is about 5 years old. Thank you.

2025/02/05

Chop England said:

I lost my manual but my red light is flashing really fast with no click and have no fire to the fence. Any suggestions on what’s wrong?

2025/02/05

Paul Post said:

I am having the same problem that Paul Wright had. I turned my Gallagher S7 on and it flashes and shocks once and stops. What is the problem? Do I need to send it in to get it fixed? Thanks, Paul.

2025/02/05

Robert Thompsons said:

s17 charger.Red light flashes and hear click each time it flashes. no output voltage on leads.

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