Lighting plays a key role in both the beauty and health of your biOrb aquarium. Whether you use a standard LED, an MCR (Multi-Colour Remote) unit, or an automatic light system, proper illumination enhances fish colour, supports plant growth, and adds ambiance to your space. But if your biOrb light stops working, it can be frustrating—and potentially harmful to your tank’s environment if not resolved quickly.
This guide will walk you through the most common biOrb lighting issues, how to troubleshoot them, and when to consider a replacement.
Common biOrb Lighting Problems and Their Causes
1. Light Doesn’t Turn On
This can be caused by a disconnected or faulty power supply, a damaged light unit, or a failed remote (for MCR systems).
2. Dim or Flickering Light
Likely due to a loose cable, power instability, or a failing LED circuit inside the unit.
3. Remote Doesn’t Work (MCR Models)
May be caused by weak battery, remote pairing issues, or obstructions between the remote and the light sensor.
4. Light Doesn’t Follow Timer Settings
Possible issues include loss of memory after power interruption or improper cycle setting on the remote.
Step-by-Step Troubleshooting Guide
Step 1: Check the Power Supply
Unplug the power adapter and check for visible wear or damage. Plug it into a different outlet to rule out socket issues. If the light turns on, the issue may be the previous socket or a loose connection.
Step 2: Inspect the Light Unit and Cable
Gently inspect the light housing for moisture, cracks, or burnt-out spots. Trace the cable back to the control unit and look for pinched or frayed wires.
Step 3: Test with a New Remote (for MCR Systems)
If the MCR light works manually but not with the remote, replace the battery or try a spare remote if available. Ensure you’re aiming directly at the light’s infrared receiver and no obstructions are in the way.
Step 4: Reset Timer Cycles
For MCR lights, use the remote to reset the timer settings. Turn the light off, wait 10 seconds, then set your desired light cycle (e.g., 8H). The light will follow that cycle from the time it’s set.
Step 5: Try a Replacement Light (if available)
If possible, swap in a known working biOrb light. If the new light works, your original unit likely needs replacing.
When to Replace Your biOrb Light
If your light is more than 2–3 years old, shows signs of overheating or flickering even after checking connections, or fails to respond to any power source or remote control—it’s time for a replacement.
Official biOrb MCR and LED lighting systems are available in upgrade kits and replacement formats for CLASSIC, LIFE, FLOW, TUBE, and HALO models.
Shop Replacement Lighting at Charterhouse Aquatics
Charterhouse Aquatics offers the full range of official biOrb lighting products, including:
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MCR LED light units (with remote)
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Standard white LED light rings
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Power adapters and cables
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Light timer controllers and hoods
We provide fast UK delivery and expert advice to help you find the right lighting fix for your tank.
Preventing Future Lighting Issues
To extend the life of your biOrb lighting system:
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Avoid placing the tank in direct sunlight or areas with moisture buildup
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Use a surge protector to prevent power damage
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Clean the light cover gently during tank maintenance
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Keep the remote in a dry, accessible location
🐠 Final Thoughts
Lighting is a critical part of your aquarium’s ecosystem and display. If your biOrb light stops working, don’t panic—most issues can be quickly diagnosed and fixed with a few checks. And if it’s time for a new unit, upgrading to an MCR light can add new colour and flexibility to your aquascape.
