Sewer cameras, like the S610ASMKTCP, are critical tools for professional plumbers, contractors, and maintenance teams etc. However, like all electronic devices, occasional technical problems can arise. One common but frustrating issue users may encounter is that the unit powers on properly, yet the screen remains completely black- just darkness.

This blog post aims to walk you through a detailed diagnostic process for the S610ASMKTCP sewer camera when this specific issue occurs. We’ll explore the most common causes—including coil circuit board malfunctions, meter counter failure, camera head damage, and internal coil wire problems—and provide practical troubleshooting tips for each.

⚠️Note: The black screen of S610ASMKTCP sewer camera is different from other models of plumbing cameras. Its black screen is when it is turned on, while other drain cameras have black screens when the sewer camera is turned off, and there is no picture at all. But please do not worry, their problem detection methods are almost the same.

What Does the Black Screen Problem Look Like?

Imagine this: you press the power button on your S610ASMKTCP. The control unit powers up—lights might come on, and the screen itself illuminates. But there’s one major issue: no image is displayed. The screen is entirely black. This is not just an inconvenience—it can mean lost time and money on the job.

So, what's causing this❓

🔹Possible Cause 1: Damaged Camera Head

A faulty camera head is a frequent culprit in cases of a black screen. These devices are exposed to harsh environments—dirt, water, corrosion, impact damage—all of which can degrade their functionality over time.

Signs Your Camera Head May Be Damaged:

• The screen stays black regardless of camera head movement.
• The camera lens appears foggy, cracked, or filled with moisture. 

How to Check:

• Connect the camera head to another working sewer line camera system. If it still cannot work normally, it means that the camera head is broken, which causes the black screen.
• Gently rotate and adjust the camera cable—if the image flickers, it’s a coil circuit board connection issue.

Fix or Replace?

In many cases, camera heads can be replaced easily. Contact your supplier for a replacement part compatible with the S610ASMKTCP. Ensure waterproof sealing (IP68 standard or higher) and proper alignment during installation.

🔹Possible Cause 2: Malfunctioning Meter Counter (Distance Counter)

The meter counter is the component that tracks how much distance the pipe camera has been pushed into the pipeline. Some models, like the S610ASMKTCP are electronically integrated with the signal transmission system. A malfunctioning meter counter can interfere with the signal, sometimes causing a black screen.

Troubleshooting Steps:

• When pulling out the coil, check if the meter counter on the screen does not change.
• If the camera head's LED light is not working properly.

Solution:

• Replacing or repairing the meter counter module can solve this issue. （Based on the camera head and sewer coil, and other parts can be used normally.）

🔹Possible Cause 3: Coil Circuit Board Connection Failure

How to Diagnose:

• Visually inspect the circuit board connectors. Are there any loose wires?
• Check for signs of burnt components, corrosion, or damage due to water ingress.

How to Fix:

• Check all connectors firmly.
• Use electrical contact cleaner to remove corrosion.
• Replace the circuit board if there are signs of permanent damage.

🔹Possible Cause 4: Broken or Internally Damaged Push Rod Cable (Coil)

The push rod cable, or coil, houses the wiring that sends power and video signal between the camera and the control box. If the coil has internal wire fractures, corrosion, or insulation wear, it could interrupt the transmission, resulting in a black screen.

How to Identify Coil Issues:

• The camera may briefly display an image when the coil is bent or moved. This is mainly caused by poor contact of the coil circuit board.
• The sewer coil is obviously broken.
• There is a problem with the internal circuit of the coil, which requires a multimeter to test the voltage.

Resolution:

• If it is poor contact and the coil is obviously broken, please replace a new coil circuit board or a new sewer coil.
• If there is no obvious damage, if the sewer coil voltage is 0 volts after testing with a multimeter, it proves that there is a problem with the sewer coil. Please replace a new coil.

🔹Possible Cause 5: Internal circuit problems of invisible video connection cables, sewer coils, meter counters, or other accessories

How to Diagnose:

Please use a multimeter to test the video connection cable, meter counter, and internal circuit of the coil to check if Please use a multimeter to test the video connection cable, meter counter, and internal circuit of the coil to check if their voltage is 0.

For example:

S610ASMKTCP video connection cable voltage detection reference diagram

S610ASMKTCP sewer coil voltage detection reference diagram

How to Fix:

• If the internal circuit of a component is detected to have no voltage, it is very likely that the component is damaged. Please replace the component.

When to Seek Professional Help

If none of the above steps resolve your black screen issue, it may be time to contact the manufacturer’s support team or an authorized repair center. Provide them with:

• A detailed description of the issue.
• Purchase order number(#SPxxx or Amazon order ID: 111-1111111-1111111), and please check that the camera waterproof o-ring of the sewer camera is black or green(because we have 2 versions of the sewer camera).
• Any tests you've already performed.

For the S610ASMKTCP, many users find success by contacting the original supplier for camera head replacements, cable assemblies, circuit boards, or meter counter components.

Final Thoughts

A black screen on your S610ASMKTCP sewer camera doesn’t necessarily mean the entire system is broken. In most cases, it’s a connection issue, a faulty component, or a damaged coil—all of which can be diagnosed with some basic tools and a bit of patience.

By understanding the four most common causes—coil board issues, meter counter malfunctions, faulty camera heads, and broken coils—you’ll be better equipped to restore your equipment quickly and confidently. And if you ever get stuck, don’t hesitate to reach out to your equipment provider for assistance or spare parts.

Happy inspecting—and may your screen always stay bright!