1. Introduction
This manual provides essential information for the safe and effective use of your SUNSUN Aquarium Submersible Heater. This LCD display water heater is equipped with a range of safety features, enabling you to maintain a constant and precise temperature within your aquarium tank. The external adjustment switch and digital display offer convenient operation and accurate temperature monitoring.
2. Safety Information
- The heater must be fully submerged in water during operation. Do not allow it to be exposed outside the water.
- Always unplug the heater from the power source before performing any maintenance, cleaning, or handling inside the aquarium.
- The heating rod is constructed from a high-temperature-resistant, explosion-proof quartz glass tube for enhanced safety.
- Advanced electronic chips and multiple temperature probes are integrated to prevent overheating and ensure precise, constant temperature control.
- An anti-collision housing protects aquatic life from direct contact with the heating element, preventing scalding.
- Avoid placing the heater in areas with very strong water flow, as this can lead to heat loss and inefficient operation.
- Ensure the power rating of the heating rod is appropriate for your fish tank's volume to achieve optimal heating.
- This heater is suitable for both fresh and saltwater aquarium tanks.
3. Product Overview
The SUNSUN Aquarium Submersible Heater features a sleek design with an integrated digital display for real-time temperature monitoring. It includes an external controller for easy temperature adjustment without needing to reach into the tank.
4. Specifications
| Model | Power | Rod Size | Cord Length | Temperature Range | Max. Tank Capacity |
|---|---|---|---|---|---|
| GR – 50 | 50 W | 16.5 cm | 1.2 m | 18 – 34 ℃ | 50 L |
| GR – 100 | 100 W | 16.5 cm | 1.2 m | 18 – 34 ℃ | 80 L |
| GR – 200 | 200 W | 21.5 cm | 1.2 m | 18 – 34 ℃ | 150 L |
| GR – 300 | 300 W | 27.5 cm | 1.2 m | 18 – 34 ℃ | 250 L |
| GR – 500 | 500 W | 32.5 cm | 1.2 m | 18 – 34 ℃ | 350 L |
| GG25W | 25 W | 180 mm | 1.2 m | 18 – 32 ℃ | <20 L |
- Voltage: 220-240V
- Plug Type: US Plug, EU Plug, UK Plug, AU Plug (depending on region)
- Origin: Mainland China
- Application: Fish (Aquarium)
5. Setup
- Unpack: Carefully remove the heater and all accessories from the packaging. Inspect for any damage.
- Placement: Choose a suitable location within your aquarium. The heater should be fully submerged in water.
- Attachment: Use the provided suction cups to securely attach the heater to the side of your tank. Ensure it is positioned vertically or horizontally, as long as it is completely underwater.
- Avoid High Flow Areas: Do not place the heater directly in front of a strong filter outlet or powerhead, as excessive water flow can reduce heating efficiency.
- Power Connection: Once securely placed and fully submerged, connect the heater's power plug to an appropriate electrical outlet.
6. Operation
- Initial Power On: After plugging in the heater, the digital display on the heater unit will show the current water temperature.
- Adjusting Temperature: Use the external adjustment switch (often labeled 'SET' or with temperature controls) to set your desired water temperature. The temperature range is typically 18 – 34°C (64 – 93°F).
- Monitoring: The LCD display on the heater will continuously show the actual water temperature, allowing you to monitor it at a glance.
- Heating Cycle: The heater will automatically turn on and off to maintain the set temperature. The nickel-chromium electric heating wire ensures fast heating and conductivity.
7. Maintenance
- Regular Cleaning: Periodically clean the heater rod to remove algae or mineral buildup. Always unplug the heater and allow it to cool completely before removing it from the tank for cleaning.
- Inspection: Regularly inspect the heater for any signs of damage, such as cracks in the glass tube, frayed power cords, or loose connections. If any damage is found, discontinue use immediately and replace the unit.
- Water Changes: During water changes, ensure the heater remains submerged. If the water level drops below the heater, unplug it to prevent dry heating and potential damage.
8. Troubleshooting
- Heater Not Heating / Inconsistent Temperature:
- Ensure the heater is fully submerged and plugged in correctly.
- Check if the set temperature is higher than the current water temperature.
- Verify that the heater's power rating is adequate for your tank size. An undersized heater may struggle to maintain temperature.
- Water temperature can vary throughout the day and night; allow time for the heater to stabilize.
- Regional differences in ambient temperature can affect heater performance.
- Ensure the heater is not in a high-flow area, which can dissipate heat.
- Overheating:
- Unplug immediately.
- Check if the thermostat is faulty.
- Ensure the heater is not too powerful for the tank volume.
- Digital Display Not Working:
- Check power connection.
- If the heater is still functioning but the display is off, it might indicate a display fault. Contact support.
- Heater Leaking:
- Unplug immediately and remove from tank. A leaking heater is a serious safety hazard and should not be used.
9. Warranty & Support
Your SUNSUN Aquarium Submersible Heater is designed for reliability and performance. For any issues or support, please refer to the following:
- Free Returns: Enjoy free returns within 90 days of purchase.
- Delivery Guarantee: Benefit from fast delivery. In case of delayed delivery, a $1.00 coupon code may be provided. Refunds are available if the package is lost or items are damaged during transit, or if no delivery occurs within 30 days.
- Security & Privacy: Your personal details are protected and not shared with third parties without your consent. Payments are secure.
- Contact Support: For further assistance, technical support, or warranty claims, please contact the seller or manufacturer directly through your purchase platform.
