1. Product Overview
The SUNSUN GR Series Aquarium Submersible Heater is designed to maintain a stable and optimal temperature in your fish tank. Featuring a digital LCD display, an external temperature controller, and a durable quartz glass construction, it offers precise temperature control and enhanced safety for your aquatic environment.
Key features include:
- Digital LCD display for real-time temperature monitoring.
- External temperature controller for easy adjustment without wetting hands.
- Constant temperature control for stable aquatic conditions.
- External protective cover for enhanced safety and durability.
- High-temperature resistant quartz glass tube for explosion-proof operation.
- Nickel-chromium electric heating wire for faster heating and better conductivity.
- Automatic power-off when removed from water to prevent overheating.
2. Specifications
The SUNSUN GR Series heaters are available in various wattages to suit different tank sizes. Please refer to the table below for detailed specifications.
| Model | Power | Size (Diameter×Length) | Power Cord Length | Temperature Range | Applicable Fish Tank Volume |
|---|---|---|---|---|---|
| GR-50C | 50W | 3×16.5 cm | 1.2 m | 18-34 °C | <50 L |
| GR-100C | 100W | 3×16.5 cm | 1.2 m | 18-34 °C | <80 L |
| GR-200C | 200W | 3×21.5 cm | 1.2 m | 18-34 °C | <150 L |
| GR-300C | 300W | 3×27.5 cm | 1.2 m | 18-34 °C | <250 L |
| GR-500C | 500W | 3×32.5 cm | 1.2 m | 18-34 °C | <350 L |
Note: Manual measurements may have a slight error. Please refer to the actual product.
- Voltage: 220-240V
- Plug Type: Available with EU, UK, AU adapters. Please ensure you select the correct adapter for your region.
- Material: High-temperature resistant quartz glass tube, Nickel-chromium electric heating wire.
- Is Smart Device: No
- Battery Included: No
3. Setup Instructions
Follow these steps to safely install your SUNSUN Aquarium Submersible Heater:
- Unpack: Carefully remove the heater and all components from the packaging. Inspect for any damage.
- Placement: Submerge the heater completely in your aquarium water. Ensure it is placed in an area with good water circulation to distribute heat evenly. The heater is designed to be fully submersible.
- Secure: Use the provided suction cups to firmly attach the heater to the inside wall of your aquarium.
- External Controller Placement: Position the external temperature controller outside the fish tank, in a dry location where it is easily accessible for adjustments.
- Power Connection: Connect the heater's power plug to a suitable electrical outlet. Ensure the voltage matches the heater's requirements (220-240V).
- Initial Check: After plugging in, the digital display on the heater will show the current water temperature.
4. Operating Instructions
Operating your SUNSUN GR Series heater is straightforward:
- Power On: Once plugged in, the heater will automatically display the current water temperature.
- Set Temperature: Use the external temperature controller to adjust the desired water temperature. The digital display on the heater will show the set temperature briefly before returning to the current water temperature.
- Automatic Heating: The heater will automatically turn on and off to maintain the set temperature within the specified range (18-34 °C).
- Safety Feature: The heater is equipped with an automatic power-off function if it is removed from the water, preventing dry burning and ensuring safety.
5. Maintenance
Regular maintenance ensures the longevity and efficient operation of your heater:
- Unplug Before Maintenance: Always unplug the heater from the power outlet before performing any maintenance or cleaning.
- Cleaning: Periodically clean the heater's surface to remove algae or mineral buildup. Use a soft brush or cloth and aquarium-safe cleaning solutions if necessary. Do not use harsh chemicals.
- Inspection: Regularly inspect the power cord and the heater body for any signs of damage, cracks, or wear. If any damage is found, discontinue use immediately and replace the heater.
- Water Level: Ensure the heater remains fully submerged at all times during operation.
6. Troubleshooting
If you encounter issues with your heater, try the following troubleshooting steps:
- Heater Not Turning On:
- Check if the power plug is securely inserted into the outlet.
- Verify that the power outlet is functional by plugging in another device.
- Ensure the heater is fully submerged in water. The safety feature prevents operation when dry.
- Incorrect Temperature Reading:
- Ensure the heater's sensor is clean and free from debris.
- Compare the heater's reading with a separate, reliable aquarium thermometer. If there's a significant discrepancy, the heater's sensor might be faulty.
- Water Temperature Not Reaching Set Point:
- Check if the heater's wattage is appropriate for your tank size (refer to Table 1). An underpowered heater may struggle to heat a large tank.
- Ensure good water circulation around the heater.
- Verify the set temperature on the external controller is correct.
- Heater Overheating:
- Immediately unplug the heater.
- Check if the heater is fully submerged.
- Ensure the external controller is functioning correctly and not stuck at a high setting.
If problems persist after troubleshooting, please contact customer support.
7. User Tips
- Verify Plug Type: Before purchasing or using, always confirm that the heater comes with the correct plug adapter (EU, UK, AU, etc.) for your region to ensure compatibility and safe operation.
- Monitor Water Temperature: While the heater has a digital display, it's always a good practice to use an independent aquarium thermometer to cross-reference the water temperature, especially during initial setup.
- Gradual Temperature Changes: When adjusting the temperature, make gradual changes to avoid shocking your aquatic inhabitants.
8. Warranty and Support
The SUNSUN GR Series Aquarium Submersible Heater comes with a one-year warranty from the date of purchase, covering manufacturing defects.
For warranty claims, technical support, or any product-related inquiries, please contact the seller or manufacturer directly. Keep your proof of purchase for warranty validation.
