1. Introduction
Thank you for purchasing the hygger Aquarium Heater. This device is designed to maintain a stable water temperature in your aquarium, ensuring a healthy environment for your aquatic life. Please read this manual carefully before installation and operation to ensure proper use and safety.
Image: Overview of the hygger aquarium heater, highlighting its LED digital display, temperature adjustment, precise control, and memory function.
2. Safety Precautions
- Always unplug the heater from the power outlet before performing any maintenance, cleaning, or water changes in the aquarium.
- Ensure the heater is fully submerged in water before plugging it in. Operating the heater out of water can cause damage and pose a fire hazard.
- Do not operate the heater if the power cord or plug is damaged.
- This heater is designed for indoor use only.
- Keep out of reach of children.
- The heater is made of quartz explosion-proof glass, but handle with care to avoid breakage.
- Ensure the water temperature does not exceed 35°C (95°F) to prevent the overheat protection from activating.
3. Product Features
- 10W Aquarium Heater: Suitable for 1-20L glass or acrylic tanks. Temperature range of 15-34°C (59-93°F). Compatible with both freshwater and saltwater aquariums, ideal for fish or turtle tanks.
- Premium Quartz Glass: Constructed with 2mm thick quartz explosion-proof glass, offering resistance to explosion and corrosion. This design protects aquatic inhabitants from potential burns or injuries.
- Dry-run and Overheat Protection: The heater automatically stops heating if the water temperature exceeds 35°C (95°F) or if the water level drops below the minimum required. The controller will display error codes: "HH" for high temperature and "E1" for dry-run.
- Ultra-Mini Size: With a length of only 10.5cm, this compact heater is perfect for mini tanks and betta tanks. Its small footprint allows for easy concealment while providing powerful heating performance.
- LED Digital Display & External Temperature Controller: The LED digital display provides real-time monitoring of the water temperature. The external controller allows for temperature adjustments without getting your hands wet.
4. Setup and Installation
4.1 Unpacking
Carefully remove the heater and all accessories from the packaging. Inspect for any signs of damage. If any damage is found, do not use the product and contact customer support.
4.2 Placement
The heater must be fully submerged in water. Use the provided suction cups to securely attach the heater to the inside wall of your aquarium. It can be installed vertically or horizontally.
Image: Examples of correct heater placement, both vertical and horizontal, ensuring full submersion.
Image: Examples of incorrect heater placement, showing partial submersion and the heater being out of water.
4.3 Power Connection
Once the heater is securely placed and fully submerged, plug the power cord into a suitable electrical outlet (AC 110-120V / 60HZ).
Image: The hygger aquarium heater correctly installed and operating within an aquarium.
5. Operating Instructions
5.1 Setting Temperature
The external controller features an LED digital display that shows the current water temperature. To set the desired temperature, press the "SET" button on the controller. The temperature range is 15-34°C (59-93°F).
Image: The heater's external controller showing the digital display, set button, and temperature range indicators.
5.2 Heating Indicator
A red light on the controller indicates that the heater is actively heating the water. A blue light indicates that heating has stopped, meaning the desired temperature has been reached or the heater is in standby mode.
6. Maintenance
- Regular Cleaning: Periodically clean the heater surface to prevent algae and mineral buildup, which can reduce efficiency. Always unplug the heater before cleaning.
- Water Changes: Always unplug the heater during water changes to prevent dry-run activation and potential damage.
- Inspection: Regularly inspect the power cord and heater body for any signs of wear, cracks, or damage. Replace the unit if any damage is found.
7. Troubleshooting
| Problem | Error Code / Indication | Solution |
|---|---|---|
| Heater not heating / Display shows "HH" | "HH" (High Temperature) | The water temperature has exceeded 35°C (95°F). The heater has stopped heating as a safety measure. It will resume heating when the water temperature drops below 35°C. Check ambient temperature or tank size suitability. |
| Heater not heating / Display shows "E1" | "E1" (Dry-run) | The heater is not fully submerged in water. Unplug the heater, ensure it is completely submerged, and then plug it back in. |
| Heater not turning on | No display, no lights | Check if the power cord is securely plugged into a working outlet. Ensure there is power to the outlet. Inspect the power cord for any damage. |
| Inconsistent temperature | Water temperature fluctuates | Ensure the heater is correctly sized for your tank volume. Check for proper water circulation around the heater. Avoid placing the heater near strong currents or cold spots. |
Image: The heater controller displaying error codes "HH" for overheat protection and "E1" for dry-run protection.
8. Specifications
| Specification | Detail |
|---|---|
| Model Number | HG-031 |
| Power | 10W |
| Applicable Tank Size | 1-20 Liters |
| Temperature Range | 15-34°C (59-93°F) |
| Input Voltage | AC 110-120V / 60HZ |
| Heater Length | 10.5 cm |
| Power Cord Length | 30 cm (controller to plug) + 130 cm (heater to controller) |
| Material | Quartz Explosion-Proof Glass |
| Compatibility | Freshwater and Saltwater Aquariums |
Image: A table detailing specifications for various hygger heater wattages, including power, size, applicable tank size, cord length, input voltage, and temperature range.
9. Warranty and Support
For warranty information or technical support, please contact hygger customer service. Refer to your purchase documentation for specific warranty terms and contact details.
