Troubleshooting

Please consult this section if you encounter issues while using the device.

Most problems can be resolved by analyzing the circumstances and following the steps described here. If the issue persists, please contact us as soon as possible so we can assist to resolve the problem.

Device operation conditions

To ensure proper operation when the device is powered by a battery recharged via a solar panel, use a battery with a capacity of at least 75–100 Ah and a solar panel with a power rating of at least 100 W.

The device is equipped with two LEDs. When viewed from the front, these are:

• the left LED (green), and

• the right LED (red and blue).

Left LED (green) – supply voltage indication

The left (green) LED indicates the presence of the supply voltage. It lights up when the supply voltage reaches approximately 4–5 V and becomes fully illuminated above this level.

Right LED (red and blue) – voltage and device status indication

The right LED provides two types of information:

1. Red light (supply voltage level)

The LED lights red when the supply voltage is in the 5–10.5 V range, indicating a dangerously low voltage level. This is especially important when the device is powered by a lead-acid battery. Above 10.5 V, the device is expected to operate normally. The nominal supply voltage is 12 V, which may rise to 13–14 V during charging.

2. Blue flashes (operational status)

When the device’s logic circuits are operating normally, the LED emits blue flashes in a 5-second cycle. These flashes indicate:

• the presence of high-voltage fence impulses,

• the presence of a GSM signal, and

• the presence of a GPS signal.

Please consult this page to learn the meaning of the LED flash patterns. If the device location is well chosen, these flashes (as well as the other LEDs) can be observed from a distance, eliminating the need to physically approach the device for routine checks.

Low supply voltage

If the supply voltage is low, corrective action is required. Check the entire power supply chain, including:

• the battery,

• all electrical connections, and

• if a solar panel is used for charging, the charge controller and the solar panel itself (check for dirt, shading, or damage).

Summary

• Left LED: Indicates the presence of weak or normal supply voltage

• Right LED:

  • Red: Low supply voltage.

  • Blue flashes: Status indication for fence voltage, GSM signal, and GPS signal.

The device is not operating – no lights, no impulses

This situation usually occurs when the device has lost its power supply. Please check the following steps to identify and resolve the power supply issue. If, after completing these steps, the supply voltage is confirmed to be correct, the device is most likely defective. In this case, please contact us and send the device for service repair.

1. Check the polarity of the power cables – usually the positive lead is red, the negative lead is black.

2. Make sure the leads are clean and free of oxidation, dirt, or other contaminants.

3. Check the condition of the power cable and contacts — the wires may be broken internally, or the contacts may have become loose. If everything appears to be in order, disconnect all cables from the device, including the high-voltage fence cable and the power supply.

4. Measure the supply voltage using a multimeter. The voltage must be between 11.2 V and 14 V. If the voltage is within this range, proceed to step 5.

5. Apply a small load to the power supply (for example, a 12 V bulb) while measuring the voltage. The voltage must remain within the range of 11.2 V to 14 V. A worn-out battery will show a rapid voltage drop under load. A broken AC / DC adapter will not light up the bulb.

6. If the supply voltage seems to be OK, reconnect the power cables, ensuring that the correct polarity is observed. If the device indicators still do not light up, the device is most likely defective.

The device appears to be off-line

If the device status shows as off-line in your account, first check the device’s indicator LED. Observe it for several seconds and look for three rapid flashes within a 5-second period. If these flashes occur, the device does not have a GSM signal.

Check the surroundings, as building walls or nearby metal objects may obstruct the GSM signal. To confirm signal availability at the exact location, you can check it using a smartphone (note that the device may attempt to connect to a different mobile network than your phone).

If there is no GSM signal (three rapid flashes are observed), the issue can usually be resolved by moving the device to a slightly different location. If no GSM signal is available anywhere in the intended operating area, the device unfortunately cannot be used as a smart device.

If the three rapid flashes do not occur but the device still appears off-line, there is most likely a SIM card issue. In this case, please contact us. Before calling or e-mailing, locate the “Device properties” menu for the device so you can provide the information required to identify it.

The device impulse generator is working, but the impulses appear to be weak

First, make sure you are using a high-voltage impulse tester to measure the impulse level. Do not rely on estimation or guesswork.

Proper grounding is required for correct operation. Poor electrical connection between the device and the ground, or improper grounding (short metallic rod, dry soil), can result in weak impulses and low voltage.

Weak impulse levels may be caused by poor device–fence connection or short circuits on the fence. This typically happens when fence wires touch vegetation or other objects, allowing the high voltage to drain away. The device itself is rarely defective: if the high-voltage impulse generator fails, the impulses usually stop completely rather than becoming partially weaker.

To verify proper device operation, disconnect the fence cables and use a screwdriver to nearly short the device’s high-voltage terminals (touch one terminal and bring the screwdriver tip to within approximately 3 mm of the other terminal). You should observe visible sparks.

Next, reconnect the fence cables and walk along the fence to locate the short circuit. Look for fence wires touching vegetation or other objects, and carefully inspect the insulators on each post – especially at gates.

The device impulse generator is not working

If the impulse generator is not operating at all (no popping sounds can be heard from the device), check the following:

1. Check the supply voltage. The absolute minimum operating voltage is 10.5 V, but 11.2 V is considered the minimum for reliable long-term operation.

2. Check the “Impulse generator control” menu in the device settings. The impulse generator may be switched off, or a schedule may be configured that instructs the device to disable it. After changing the impulse generator state, wait at least 2 minutes for the next communication cycle so the device can receive and apply the command.

Important: Disconnecting and reconnecting the device does not reset the impulse generator's on/off state. The last state is stored in the device memory. If the impulse generator was turned off via software, it will remain off after power is restored and must be turned on again through communication.

If the device continues to remain inactive, please contact us to discuss the issue or to arrange service repair.

The device impulse generator turns on and off by itself

This issue is usually caused by significant supply voltage fluctuations, particularly when the device is powered by a lead-acid battery recharged via a solar panel. During cold nights and cloudy days, the battery charge level may be low, causing the voltage to fluctuate considerably. To address this issue, use a 75–100 Ah battery, or temporarily replace the battery every 1–2 days with a fully recharged one. Although inconvenient, this can be an effective short-term solution during extended periods of low sunlight, such as dark and cloudy winter conditions. Using a larger solar panel (200 W or higher) may also help stabilize the supply voltage.

If the supply voltage remains stable but the device still randomly reports that the impulse generator has been turned off — and the impulse generator actually switches off — the cause may be an internal communication fault or a circuit defect. In this case, the device must be sent to service for repair.

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Notifications are not received or are delayed

Please be aware that notifications are delayed by several minutes! The system must determine whether a reported value is truly erroneous and filter out temporary fluctuations (jitter).

• Power loss: 4–6 minute notification delay.

• Fence voltage loss: 4–6 minute notification delay.

• Disconnected state: 10-minute notification delay.

• Location change: 4–6 minute notification delay.

First, check “Sent notifications” in your account to confirm whether the system actually sent an e-mail or SMS notification.

To troubleshoot notification issues, open the “Notification settings” menu for the device in your account. This dialog displays the e-mail address and phone number to which notifications are sent. Then verify that notifications are enabled for the relevant events.

Attention: Each device has separate notification settings. Changing the notification settings for one device does not automatically apply them to other devices.

E-mail messages are not received

If the configured e-mail address appears to be correct, check the following:

• Spam or Junk folders in your e-mail client. Occasionally, messages may be filtered into these folders. If this happens, use the “Not spam” option to prevent future messages from being treated as spam.

• Typographical errors in the e-mail address (for example, yaho instead of yahoo, or gemail / gmai instead of gmail).

Please note that there is a 15-minute e-mail cooldown period. Once an e-mail notification for an event has been sent, the system will not send another e-mail for the same event within 15 minutes.

SMS messages are not received

Check the following:

• SMS credits in the “SMS credits” menu of your account. If the credits are depleted, you must top up your account.

• The phone number configured in your account for typographical errors.

• Your smartphone’s SMS inbox and spam filtering settings. Some devices or carriers automatically block messages from certain short numbers. This may occur even if the blocking was triggered by a message not originating from the dl-smart.eu system but sent from the same short number.

Please note that there is a 6-hour SMS cooldown period. Once an SMS notification for an event has been sent, the system will not send another SMS for the same event within 6 hours.