1. Introduction
The Sunsun LCD Digital Display Constant Heater is designed to provide stable and precise temperature control for your aquarium. This submersible heater features a durable quartz heating rod, an easy-to-read LCD digital display, and an external controller for convenient temperature adjustment. It is suitable for various fish tank sizes, ensuring a comfortable and consistent environment for your aquatic pets.
Sunsun GR series aquarium heater with LCD display.
2. Safety Precautions
- Full Submersion: The heating rod must always be fully submerged under the water level when in operation. Operating it out of water will cause severe damage to the heater due to overheating.
- Power Disconnection: Before performing any maintenance, cleaning, or water changes, always cut off the power supply and wait at least 10 minutes for the heater to cool down completely.
- Dry Connections: Ensure the power plug and socket are completely dry before connecting the heater to an electrical outlet.
- Indoor Use Only: This device is designed for indoor aquarium use only.
- Child Safety: Keep the heater and its power cord out of reach of children and pets.
- Damage Inspection: Do not operate the heater if the power cord, plug, or the heater itself shows any signs of damage. Contact support for assistance.
Always ensure correct installation and full submersion.
3. Product Overview
3.1 Components
Main components: Plug, Power Cord, Controller, Heating Rod.
- Heating Rod: The main heating element, made of durable quartz glass.
- Controller: External unit for adjusting and setting the desired temperature.
- Power Cord: Connects the heater to the power source.
- Plug: For electrical connection (available in EU, UK, AU, US adapter types).
- Suction Cups: For securing the heater to the aquarium wall.
3.2 Key Features
- Quartz Heating Rod: Durable and efficient heating element.
- LCD Digital Display: Provides clear, real-time water temperature readings.
- External Temperature Control: Allows for easy and safe temperature adjustment outside the aquarium.
- Electronic Temperature Control: Utilizes an electronic chip for precise temperature management, preventing rapid temperature fluctuations.
- Nickel-Chromium Heating Wire: Ensures rapid heat collection and stable heating speed with a long service life.
- Automatic Constant Temperature: Maintains the set temperature automatically for consistent warmth.
- Quartz Glass Insulation: Features an explosion-proof design for enhanced safety and durability.
- ABS Protective Jacket: Provides security against fish impact, prevents scalding, and features a multi-hole design for better heat dissipation. It is detachable for easy cleaning.
- Strong Suction Cups: For secure and firm installation within the aquarium.
- 3C Certified Plug: National standard certification for safety and durability.
- Temperature Sensing Probe: Multiple probes prevent overheating or insufficient heating by accurately detecting water temperature.
Innovative functions for optimal aquarium heating.
4. Specifications
| Feature | Detail |
|---|---|
| Voltage | 220-240V |
| Plug Type | US Plug (Other adapters like EU, UK, AU available depending on model/region) |
| Temperature Range | 18-34 °C |
| Is Smart Device | No |
| Type | Fish Aquarium Heater |
| Origin | Mainland China |
4.1 Model Specifics (GR-Series)
Detailed specifications for different GR series models.
| Model | Power (W) | Size (mm) | Line Length (m) | Temperature Control (°C) | Recommended Fish Tank (L) |
|---|---|---|---|---|---|
| GR-50B | 50 | 30x165 | 1.2 | 18-34 | <50 |
| GR-100B | 100 | 30x165 | 1.2 | 18-34 | <80 |
| GR-200B | 200 | 30x215 | 1.2 | 18-34 | <150 |
| GR-300B | 300 | 30x275 | 1.2 | 18-34 | <250 |
| GR-500B | 500 | 30x325 | 1.2 | 18-34 | <350 |
5. Installation
- Unpack: Carefully remove the heater and all its components from the packaging. Inspect for any damage before proceeding.
- Positioning: Choose a location in your aquarium where the heater can be fully submerged and where there is good water circulation (e.g., near a filter outlet) to ensure even heat distribution.
- Secure: Use the provided strong suction cups to firmly attach the heater to the inside wall of the aquarium. Ensure it is positioned vertically and completely covered by water. Do not install the heater horizontally or partially submerged.
- Connect Power: Once the heater is securely installed and fully submerged, connect the power plug to a suitable electrical outlet.
Correct installation ensures safety and efficiency.
6. Operation
- Power On: After installation, plug the heater into a power source. The LCD digital display on the heater will illuminate and show the current water temperature.
- Set Temperature: Use the external controller to adjust the desired water temperature. The adjustable range is typically 18-34°C.
- Monitor: The heater will automatically work to reach and maintain the set temperature. The real-time LED display allows you to continuously monitor the water temperature.
External controller for easy temperature adjustment.
Real-time temperature display.
7. Maintenance
- Power Off and Cool Down: Always unplug the heater and wait for at least 10 minutes before handling it for cleaning or maintenance. This prevents burns and damage to the heater.
- Clean Protective Jacket: The ABS protective jacket is detachable. Remove it and gently clean any algae or debris buildup. This ensures efficient heat transfer and prevents potential issues.
- Clean Heater Surface: Carefully wipe the quartz heating rod with a soft cloth to remove any deposits. Do not use abrasive cleaners or harsh chemicals.
- Inspect Components: Regularly check the power cord, plug, and the heater body for any signs of wear, cracks, or damage.
- Reassemble: Reattach the protective jacket securely before placing the heater back into the aquarium.
Detachable ABS protective jacket for easy cleaning and safety.
8. Troubleshooting
- Heater Not Turning On/Displaying:
- Check if the power plug is fully inserted into a working electrical outlet.
- Ensure there is power to the outlet.
- Temperature Not Reaching Set Point:
- Verify that the heater's wattage is appropriate for your aquarium's volume (refer to the specifications table).
- Check for adequate water circulation around the heater.
- Ensure the set temperature is within the heater's operating range (18-34°C).
- Heater Overheating (Display shows unusually high temperature or heater feels excessively hot):
- Immediately unplug the heater.
- Ensure the heater is fully submerged in water.
- Check for proper water flow around the heater.
- Allow the heater to cool down before re-evaluating.
- Inaccurate Temperature Reading:
- Ensure the temperature sensing probe is clean and free from obstructions.
- Cross-reference with an independent aquarium thermometer for verification.
9. User Tips
- Optimal Placement: For the most effective and even heat distribution, position the heater near a filter outlet or in an area of the tank with consistent water movement.
- Temperature Verification: While the built-in LCD display is convenient, it's good practice to use a separate, reliable aquarium thermometer to cross-reference the water temperature, especially during initial setup or after significant water changes.
- Water Changes: When performing water changes, try to ensure the new water added is close to the current tank temperature. This minimizes stress on your aquatic inhabitants and prevents the heater from having to work excessively to compensate for large temperature drops.
10. Warranty and Support
For information regarding warranty coverage, technical support, or replacement parts, please refer to your purchase documentation or contact the retailer from whom you purchased this product. You may also visit the official Sunsun website for further assistance.
