If your underwater aquaculture camera malfunctions during operation, follow these systematic steps to diagnose and resolve the issue:

1. Immediate Actions (Emergency Procedures)

1.1 Power Cycle the Device

• Disconnect and reconnect the power supply (if wired).
• If battery-powered, remove and reinsert the battery after 30 seconds.

1.2 Check Physical Connections

• Inspect cables for damage, corrosion, or loose connections.
• Ensure waterproof connectors are properly sealed.

1.3 Retrieve the Camera (If Safe to Do So)

• If the camera is non-responsive, carefully retrieve it to prevent further damage.
• Avoid abrupt movements that may stress the cable or housing.

2. Common Failure Modes & Solutions

2.1 No Power/Device Not Turning On

 Possible Causes:

• Dead battery or faulty power adapter.
• Corroded power contacts.
• Water ingress short-circuiting the system.

 Solutions:

• Replace/charge the battery.
• Clean power contacts with isopropyl alcohol.
• If water leakage is detected, power off immediately and dry the unit in a sealed desiccant bag for 24+ hours.

2.2 Blurry/No Video Feed

 Possible Causes:

• Lens obscured by biofouling (algae, barnacles).
• Condensation inside the housing.
• Damaged image sensor or cable.

 Solutions:

• Clean the lens with a soft brush and mild detergent.
• For condensation, place the camera in a dry environment with silica gel packets.
• Test with a backup cable or inspect for physical damage.

2.3 Intermittent Signal Loss (Wireless Models)

Possible Causes:

• Weak transmission due to distance/obstructions.
• Radio interference from other devices.
• Antenna damage.

 Solutions:

• Reduce distance between camera and receiver.
• Switch to a less congested frequency (if adjustable).
• Verify antenna integrity and reposition if needed.

2.4 Overheating or Automatic Shutdown

 Possible Causes:

• Prolonged use in warm waters (>35°C/95°F).
• Blocked ventilation (if applicable).
• Firmware/software glitch.

 Solutions:

• Allow the camera to cool before reuse.
• Update firmware via manufacturer’s instructions.
• Improve water circulation around the device.

3. Advanced Diagnostics

3.1 Factory Reset

• Consult the user manual to reset settings (may resolve software-related issues).

3.2 Component Testing

• Use a multimeter to check voltage at power inputs.
• Swap suspect components (e.g., cables, batteries) with known-working ones.

3.3 Manufacturer Support

• Provide error codes (if displayed) and environmental details (depth, temperature, salinity) to the manufacturer.

4. Preventive Measures for Future Reliability

• Routine Maintenance Schedule: Clean seals and lenses weekly in high-biofouling environments.
• Pre-Deployment Checklist: Verify power, seals, and signal strength before submersion.
• Spare Parts Kit: Keep backup O-rings, cables, and desiccant packs on hand.

Critical Reminder

If the camera remains non-functional after troubleshooting:
 Do NOT attempt to open the housing underwater or while powered on—this risks electric shock or irreversible damage.

For persistent issues, contact Shenzhen Super Times Software Co., Ltd. technical support with the following details:

• Camera model & serial number
• Failure symptoms and environmental conditions
• Steps already attempted