Your dog has been wonderful this summer: they stay in the yard, obey the boundary, and have been living their best dog life. One day you wake up and they’re already half way down the street.
Or perhaps you’re getting a frantic beep-beep-beep from the transmitter box in your garage for no apparent reason.
There’s a high probability that you have just one broken wire and that can be much easier and cheaper to fix – before you give up on the system and start shopping for a new installation.
At Pet Containment Services, we encounter more underground dog fence repairs in Southeast Michigan than any other type of repair. In this post, we will guide you through the 5 most evident indications that your underground pet fence wire is broken, why it breaks in the first place, and precisely exactly how our technicians repair it – typically in just one visit.
What Happens When an Underground Fence Wire Breaks?
Your underground fence system is a complete loop. A wire is installed from the transmitter around the outside of your property and back to the transmitter. An unmodulated radio signal is continuously transmitted from that loop. Your dog receives that signal in his collar as he approaches the boundary, and when he crosses it, he gets a warning tone – and correction if he persists.
If the signal is lost at any point – even a crack in the insulation – the wire loop is broken. The complete circuit is lost through the transmitter and an alarm is set off. Either a portion of your boundary is lost (a “dead zone”) or the full system is lost, depending on the location and severity of the break.
The frustrating part? The break could occur anywhere within hundreds of feet of the buried wire. That is why there are professionals who make wire break locating equipment and that is why you should never have to dig your yard randomly.
5 Signs Your Underground Fence Wire Is Broken
Sign 1: Your Transmitter Is Beeping or Showing a Fault Light
This is the most obvious and reliable indication that some part of the wire loop is faulty.
Most of the underground fence transmitters like Invisible Fence®, PetSafe® and Dog Guard feature a wire break alarm. If the loop is interrupted, an audible beep or a fault indicator light (usually red or flashing) is activated.
When the transmitter beeps, and there was no power outage, no change of settings, and no issues with collar or receiver – a wire break is the first item to check.
Sign 2: Your Dog Is Escaping Through a Specific Spot
When your dog suddenly learns to cross the boundary in one part of the yard without any correction, that’s a dead zone, where the wire doesn’t send a signal or it’s weak enough to not be noticed by the dog.
Dead zones occur when there is a gap or interruption in the signal strength of a portion of wire. All of the other fences may be just fine, which is why your dog isn’t jumping randomly or is not running away – that’s where it’s going!
The diagnosis of this sign is quite simple: if your dog only goes over the boundary in a specific spot continually, then the wire at that spot is the issue.
Sign 3: The Collar Doesn’t Beep When Your Dog Approaches the Boundary
Walk your dog on a leash, approaching the boundary line. When they approach, the collar should give an audible warning to the user. If it doesn’t – in a particular area of the yard – then the signal is not reaching the collar because the signal is not being carried by the wire.
Take off these fast checks before taking on a wire break:
- Does the collar battery need changing? (Replace it and test again)
- Has the correction level been set to the lowest setting? (Check transmitter settings)
- Probes in contact with skin and collars installed properly?
If everything checks out, and the collar still doesn’t react close to the edge, it’s because of the wire.
Sign 4: The System Went Down After Landscaping, Construction, or Digging
Underground fence wire is hard, but not impossible to break. In Michigan yards, the most frequent cause of wire breakage is due to damage caused by:
- Lawn aeration – aerator tines go 2-3 inches into the ground and break up the sod
- Edging or trenching – even a regular lawn edger can cut wire around sidewalks and driveways
- Tree root growth – over time, growing roots can crush and crack wire insulation
- Landscaping work – shovel work, bed digging, irrigation installation all pose a risk
- Freeze-thaw cycles – Michigan winters create substantial ground movement which can stress and fracture wire over time
- Rodent damage – yes, moles and voles do sometimes chew through wire in the ground
If there was a ground disturbance, by you, a landscaper, a utility crew, heavy frost, etc., and the system did not start in days or weeks then it is most likely the problem.
Sign 5: Intermittent or Inconsistent Corrections
Has your fence become inconsistent at times? Does the transmitter beep, stop, and then repeat the beep? Does your dog get corrected sometimes but not other times while on the same side of the yard?
If the behavior is intermittent, it is a partial wire break meaning the wire insulation is cracked or broken, but copper core within is still touching the bridge occasionally. The break opens up and closes as the ground moves, particularly when there is ground moisture in Michigan’s wet springs and cold winters.
This is often more difficult to detect than a clean break, and the system seems to be working – until it doesn’t. Don’t wait for the total failure of your fence if you let it have inconsistent and unpredictable behavior. Have it checked in advance before your dog gets the idea.
What Causes Underground Fence Wire to Break?
In addition to the events listed above, these are some of the most frequent reasons we see in Michigan:
- Shallow burial – wire buried 1-2 inches deep or less is susceptible to any kind of damage, ranging from foot traffic to frost
- Low-quality wire – PVC coated wire is prone to deterioration in the soil; heavy-duty polyethylene coated wire is much longer lasting
- Age – most wire lasts 10–20 years depending on soil quality and installation quality
- Staple damage – where wire is stapled to fence posts or structures, metal staples will eventually corrode and penetrate the insulation
- Animal activity – voles, moles, and even earthworms can destroy wire over time
How We Find and Fix Wire Breaks in Michigan
This is where a lot of homeowners become stuck. The wire is buried. You can’t see it. It can be on hundreds of feet of perimeter, and that’s just anywhere.
This is how our technicians deal with it:
Step 1: Transmitter diagnostic: Begin at the transmitter box, and check it is picking up a break, and not a collar or power problem. Check signal output and determine if it is a full loop or partial zone problem.
Step 2: Professional wire break locator equipment: We have professional wire tracing and break-locating equipment which sends a signal through the wire and finds exactly where the wire breaks. Which allows us to locate the break within a few feet without disturbing your whole yard.
Step 3: Targeted excavation: After locating the location of the break, we carefully cut the ground only as wide as a few inches to expose the wire at the fault site.
Step 4: Splice and waterproof seal: We repair the break with a direct-burial wire connector, equipped with a waterproof gel-filled cap which is specifically designed for underground applications. It’s not a twist and tape patch; it’s a proper patch that won’t fail in Michigan’s wet soil.
Step 5: System test and boundary walk: After the repair, the entire loop signal is tested and the boundary is walked with the collar to ensure that the signal strength is the same all the way around. We will not leave the system until it is in good working order.
Most wire break repairs can be done in one visit. We install all the leading brands such as Invisible Fence®, PetSafe®, Innotek®, Dog Guard, and Pet Stop®.
Is Your Underground Fence Wire Broken? We’ll Find It and Fix It.
Don’t take chances, if your transmitter beeps, your dog’s escaping, or something went wrong with your system, whether in Southeast Michigan or elsewhere – if you’re not sure, find out. Our technicians use professional wire-locating equipment to determine the exact location of the break and repair it quickly – typically in a single visit.
A diagnostic evaluation is available free of charge. Zero cost to identify the issue.
Frequently Asked Questions About Underground Fence Wire Breaks
Wire break repair costs generally range from $75 to $200, depending on the extent of the break, the accessibility of the wire, and the requirement for replacement wire. A free diagnostic is performed to ensure that no unexpected fees are applied. Call (248) 653-8873 for a same-day estimate.
If you know where the break is, you can try to do a self-repair, however, it is very hard to find a break that is buried without special equipment. When most homeowners attempt to do this, they end up digging up a lot of yard with no luck. A professional wire locating machine will be able to determine the break in minutes. Professional repair is a lot less expensive and typically not worth it to do yourself.
Wire break repairs will typically take 1-2 hours from arrival to completion. May take a little longer if there are several breaks or if the wire is under a driveway or hardscape. We do our best to finish any repairs in a single visit.
If the transmitter is still beeping after it resets, it is nearly always due to an incomplete wire loop – somewhere the wire has broken within the boundary. The unit cannot be reset to reconnect the wire. A physical wire repair is necessary to end the alarm.
No. If the wire is cut, the collar just doesn’t get a signal – it won’t fire or cause a problem. You are protected from your collar and receiver. After the repair of the wire and the return of the signal, the collar will operate as normal.
Underground fence wire is generally planted 1-3 inches deep. Wire located at shallower depths has a higher risk of damage due to aeration, edging, frost heave, and foot traffic. Greater depth of installation (3+ inches) provides greater protection over time, particularly in freeze-thaw climates like Michigan.
Yes. We service and repair all major underground fence brands such as PetSafe®, Innotek®, Dog Guard, Pet Stop® and any compatible underground fence system. Repairs need not be taken to the original installer.
The best preventative measures are: (1) always inform your landscaper/lawn care company of the presence of underground fence wire, (2) mark where wires are located before any digging or aeration activity, (3) request a deep bury on new installations (3+ inches), and (4) request a check of the system annually in spring after frost season in Michigan.